The latest: GOP candidates reveal code names they'd like to have as president

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Trump: "Arab Name, Arab Name, Arab Name"

SIMI VALLEY, Calif. (AP) -- The latest on the GOP presidential debates at the Reagan Presidential Library in Simi Valley, Calif. (all times local):

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8:15 p.m.

A night of debate between Republican presidential candidates has concluded after five hours of questions, answers and clashes.

The conflicts arose over such issues as immigration, tax policy and vaccinations.

Billionaire Donald Trump was much less combative than he had been in the previous face-off last month, and declared himself "very impressed" with the other candidates.

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8:00 p.m.

Jeb Bush turns to Donald Trump and says he would have his Secret Service code name be "Eveready, because I'm very high-energy."

That's a dig at Trump, who routinely calls the former Florida governor "low-energy." It's a critique that has struck a nerve in the former Florida governor.

Asked the same question, the famously self-promoting Trump leans close to his microphone and says his name would be "Humble."

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See images of the 2016 GOP's second debate:

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GOP Main Debate 9/16/2015
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The latest: GOP candidates reveal code names they'd like to have as president
Republican presidential hopefuls, (L-R) South Carolina Sen. Lindsay Graham, former New York Gov. George Pataki, Sen. Rick Santorum, Kentucky Sen. Rand Paul, former Arkansas Gov. Mike Huckabee, Florida Sen. Marco Rubio, Texas Sen. Ted Cruz, retired neurosurgeon Ben Carson, real estate magnate Donald Trump, former Florida Gov. Jeb Bush, Wisconsin Gov. Scott Walker, former CEO Carly Fiorina, Ohio Gov. John Kasich, and New Jersey Gov. Chris Christie, arrive on stage for the Republican presidential debate at the Ronald Reagan Presidential Library in Simi Valley, California on September 16, 2015. Republican presidential candidates collectively turned their sights on frontrunner Donald Trump at the party's second debate, taking aim at his lack of political experience and his sometimes abrasive style. AFP PHOTO/ ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
Republican presidential candidates businessman Donald Trump, left, and Scott Walker, right, both speak as Jeb Bush, listens during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)
Republican presidential hopefuls (L-R), Kentucky Sen. Rand Paul, former Arkansas Gov. Mike Huckabee , Florida Sen. Marco Rubio, Texas Sen. Ted Cruz, real estate magnate Donald Trump, former Florida Gov. Jeb Bush, Wisconsin Gov. Scott Walker, and former CEO Carly Fiorina, listen as retired neurosurgeon Ben Carson (C) speaks during the Presidential debate at the Ronald Reagan Presidential Library in Simi Valley, California on September 16, 2015. Republican presidential frontrunner Donald Trump stepped into a campaign hornet's nest as his rivals collectively turned their sights on the billionaire in the party's second debate of the 2015. AFP PHOTO / FREDERIC J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
Republican presidential candidate businessman Donald Trump speaks during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)
Republican presidential candidate, Sen. Ted Cruz, R-Texas, speaks during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)
SIMI VALLEY, CA - SEPTEMBER 16: : Republican presidential candidates Mike Huckabee and Marco Rubio take part in the presidential debates at the Reagan Library on September 16, 2015 in Simi Valley, California. Fifteen Republican presidential candidates are participating in the second set of Republican presidential debates. (Photo by Justin Sullivan/Getty Images)
SIMI VALLEY, CA - SEPTEMBER 16: Republican presidential candidates Carly Fiorina and John Kasich take part in the presidential debates at the Reagan Library on September 16, 2015 in Simi Valley, California. Fifteen Republican presidential candidates are participating in the second set of Republican presidential debates. (Photo by Justin Sullivan/Getty Images)
SIMI VALLEY, CA-SEPTEMBER. 16: Republican presidential candidate Rand Paul take part in the presidential debates at the Reagan Library on September 16, 2015 in Simi Valley, California. Fifteen Republican presidential candidates are participating in the second set of Republican presidential debates. (Photo by Justin Sullivan/Getty Images)
Republican presidential candidate, Ohio Gov. John Kasich speaks during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)
Republican presidential candidates, former Florida Gov. Jeb Bush, right, and Donald Trump both speak during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)
Republican presidential candidate, retired neurosurgeon Ben Carson speaks during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)
SIMI VALLEY, CA - SEPTEMBER 16: Republican presidential candidates (L-R) Rick Santorum, George Pataki, U.S. Sen. Rand Paul (R-KY), Mike Huckabee, U.S. Sen. Marco Rubio (R-FL) , U.S. Sen. Ted Cruz (R-TX), Ben Carson, Donald Trump, Jeb Bush, Wisconsin Gov. Scott Walker, Carly Fiorina, Ohio Gov. John Kasich and New Jersey Gov. Chris Christie stand onstage during the presidential debates at the Reagan Library on September 16, 2015 in Simi Valley, California. Fifteen Republican presidential candidates are participating in the second set of Republican presidential debates. (Photo by Sandy Huffaker/Getty Images)
Republican presidential candidate, New Jersey Gov. Chris Christie responds to a question as questioners Dana Bash, center, and Hugh Hewitt, right, look on during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)
Republican presidential candidate, businessman Donald Trump reacts during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)
Carly Fiorina, former chairman and chief executive officer of Hewlett-Packard Co. and 2016 Republican presidential candidate, speaks during the Republican presidential debate at the Ronald Reagan Presidential Library in Simi Valley, California, U.S., on Wednesday, Sept. 16, 2015. After a friendly round of introductions, the second Republican presidential debate quickly plunged into clashes that shifted from policy to the personal, with more politically experienced insiders trying to gain an advantage against the front-runner at center stage: Donald Trump. Photographer: Max Whittaker/Pool via Bloomberg
SIMI VALLEY, CA-SEPTEMBER. 16: Republican presidential candidates Marco Rubio, U.S. Sen. Ted Cruz (R-TX), Ben Carson, Donald Trump, Jeb Bush and Wisconsin Gov. Scott Walker take part in the presidential debates at the Reagan Library on September 16, 2015 in Simi Valley, California. Fifteen Republican presidential candidates are participating in the second set of Republican presidential debates. (Photo by Justin Sullivan/Getty Images)
Republican presidential candidate, former Florida Gov. Jeb Bush, center, gestures as Donald Trump, left, and Scott Walker look on during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)
Republican presidential candidate, New Jersey Gov. Chris Christie speaks during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)
Republican presidential candidate, Sen. Marco Rubio, R-Fla., speaks during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)
Republican presidential candidate, Sen. Ted Cruz, R-Texas, left, looks on as Ben Carson speaks during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)
SIMI VALLEY, CA - SEPTEMBER 16: Republican presidential candidates Chris Christie (R) and Ohio Gov. John Kasich take part in the presidential debates at the Reagan Library on September 16, 2015 in Simi Valley, California. Fifteen Republican presidential candidates are participating in the second set of Republican presidential debates. (Photo by Justin Sullivan/Getty Images)
SIMI VALLEY, CA - SEPTEMBER 16: Republican presidential candidates Donald Trump (L) and Jeb Bush take part in the presidential debates at the Reagan Library on September 16, 2015 in Simi Valley, California. Fifteen Republican presidential candidates are participating in the second set of Republican presidential debates. (Photo by Justin Sullivan/Getty Images)
Republican presidential hopeful Jeb Bush speaks during the Republican Presidential Debate at the Ronald Reagan Presidential Library in Simi Valley, California, September 16, 2015. Republican presidential candidates collectively turned their sights on frontrunner Donald Trump at the party's second debate, taking aim at his lack of political experience and his sometimes abrasive style. AFP PHOTO / FREDERIC J BROWN (Photo credit should read FREDERIC J BROWN/AFP/Getty Images)
Republican presidential candidate, former Arkansas Gov. Mike Huckabee, left, speaks as Marco Rubio looks on during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)
SIMI VALLEY, CA-SEPTEMBER. 16: Republican presidential candidate Donald Trump takes part in the presidential debates at the Reagan Library on September 16, 2015 in Simi Valley, California. Fifteen Republican presidential candidates are participating in the second set of Republican presidential debates. (Photo by Justin Sullivan/Getty Images)
Republican presidential candidates Ben Carson, left, and Donald Trump talk before the start of the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill)
2016 Republican presidential candidates Carly Fiorina, former chairman and chief executive officer of Hewlett-Packard Co., and Scott Walker, governor of Wisconsin, walk on stage during the Republican presidential debate at the Ronald Reagan Presidential Library in Simi Valley, California, U.S., on Wednesday, Sept. 16, 2015. The main debate of the top 11 GOP contenders in the polls follows the 'kids' table' debate of candidates who didn't make the cut. Photographer: Patrick T. Fallon/Bloomberg via Getty Images
Republican presidential hopefuls, (L-R) retired neurosurgeon Ben Carson, real estate magnate Donald Trump, and former Florida Gov. Jeb Bush, arrive on stage for the Republican presidential debate at the Ronald Reagan Presidential Library in Simi Valley, California on September 16, 2015. Republican presidential candidates collectively turned their sights on frontrunner Donald Trump at the party's second debate, taking aim at his lack of political experience and his sometimes abrasive style. AFP PHOTO/ ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
Republican presidential candidates Chris Christie, right, John Kasich, center, and Carly Fiorina enter the stage prior to the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Chris Carlson)
SIMI VALLEY, CA - SEPTEMBER 16: Republican presidential candidate Donald Trump speaks with reporters after the presidential debate at the Reagan Library on September 16, 2015 in Simi Valley, California. Fifteen Republican presidential candidates are participating in the second of presidential debates(Photo by Sandy Huffaker/Getty Images)
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7:50 p.m.

Donald Trump is stoking the furor against vaccinations, giving new voice to the widely discredited theory that they cause autism.

He says he backs vaccinating children over longer time periods and in smaller doses. Trump says, "You take this little beautiful baby and you pump - I mean, it looks just like it's meant for a horse, not for a child."

Medical experts have repeatedly rejected any link between the scheduled shots and higher rates of autism.

When asked about Trump's theory, former neurosurgeon Ben Carson joked, "He's an OK doctor."

Former Arkansas Gov. Mike Huckabee says the U.S. should place greater focus on curing diseases like diabetes. He asks, "Why doesn't this country focus on cures rather than treatment?"

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7:45 p.m.

Florida Sen. Marco Rubio says he's not in favor of environmental policies that will make business more difficult for job creators.

Rubio also said during the GOP presidential debate that he is skeptical of decisions Democrats want to make about climate change, saying they will do nothing to end the drought in California.

He says President Obama's carbon policies won't change the climate. He says, "America is not a planet."

New Jersey Gov. Chris Christie says it's a "wild, left-wing idea" that the U.S. can fix climate change on its own.

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7:40 p.m.

Jeb Bush is admitting he smoked pot in high school, an acknowledgement that came amid a debate over legalizing marijuana. He says his mother, former first lady Barbara Bush, would not be happy to hear him admit it on television.

Bush notes that he opposed a medical marijuana ballot measure in Florida because there were too many "loopholes" in the bill. He says there is a "serious epidemic" of drugs in the U.S. and is pushing for more treatment and prevention programs. But he says state laws legalizing the drug should stand.

Kentucky Sen. Rand Paul says Bush has a double standard. While poorer people go to jail for marijuana possession, Paul says, richer users escape punishment. He says, "America needs to take a different attitude."

New Jersey Gov. Chris Christie says his state is the first in the nation that requires mandatory drug treatment for non-violent offenders. He repeated his assertion that the "war on drugs has been a failure," but said, "that doesn't mean we should be legalizing gateway drugs."

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7:35 p.m.

Mike Huckabee says "darn right" he would have a litmus test for Supreme Court nominees.

He says, "I'm tired of the liberals having them."

Huckabee, a leader among the social conservatives, says he would make opposition to abortion rights a linchpin to a Supreme Court nomination.

The former Arkansas governor says he would ask any nominee if he or she believed a fetus is a human being "or a lump of tissue."

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7:30 p.m.

Texas Senator Ted Cruz says it was a mistake for him to support the nomination of Chief Justice John Roberts to the Supreme Court.

Cruz made the admission at the second Republican presidential debate. He was criticizing the record of the Bush family in nominating justices like Roberts. The chief justice has drawn conservative ire for two votes that upheld President Obama's health overhaul.

Former Florida Gov. Jeb Bush pointed out that Cruz had backed Roberts. He said the problem was that the nomination process has become so politicized that presidents put forward people with limited judicial track records like Roberts.

Bush says, "We need to make sure that we have justices with a proven, experienced record of respect for upholding the Constitution."

Roberts was nominated by Jeb Bush's brother, president George W. Bush. Cruz also cited former Justice David Souter, nominated by Jeb Bush's father, President George H.W. Bush.

Watch Carly Fiorina School Donald Trump In Foreign Policy

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7:20 p.m.

Donald Trump is pointing out that he was against the 2003 Iraq invasion. He's linking Jeb Bush to the war, which was ordered by his brother, then-President George W. Bush.

Trump says, "Your brother and your brother's administration gave us Barack Obama because it was such a disaster in the last three months."

Jeb Bush, who laid out a strategy to fight radical militant jihadists at the Reagan Library last month, has discussed his philosophy of peace through strength and acting through coalitions against global threats.

But when Trump attacked George W. Bush, Jeb Bush stopped cold and looked directly at Trump, saying, "You know what, as it relates to my brother, he kept us safe."

It's not a new line for Bush. But it earned him one of the biggest ovations of the event.

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7:10 p.m.

Rand Paul says if voters want a president who will send troops to Iraq, "you got 14 other choices."

The Kentucky senator says, "There will always be a Bush or Clinton for you if you want to go back to war in Iraq."

Paul says the first war in Iraq was a mistake, it would not be in the United States' best interests to start another one and "I'm not sending our sons and our daughters back to Iraq."

Wisconsin Gov. Scott Walker says "political restrictions" placed on troops already in the Middle East that prevent them from taking on the Islamic State should be lifted. Walker says he will only send in troops "when our national security is at risk."

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6:50 p.m.

Florida Sen. Marco Rubio is suggesting the country can't risk selecting a foreign policy novice like Donald Trump to be president.

At the second GOP presidential debate, Rubio rattled off a list of threats. He cited North Korean missiles, Russian incursions into the Ukraine and China cyberattacks. He said people need to ask candidates like Trump about foreign policy because "these are extraordinarily dangerous times."

Rubio added that the next president had "better be someone that understands these issues and has good judgment about them."

Trump acknowledged he has a lot to learn about foreign policy but vowed to be up to speed in time.

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6:48 p.m.

At a media filing center in Hillary Rodham Clinton's campaign headquarters, aides put up posters of Donald Trump, Jeb Bush and other GOP candidates with quotes from Ronald Reagan that contradict the current field's policy positions.

Speaking to the staff before the start of the debate, campaign manager Robby Mook gladly recited South Carolina Sen. Lindsey Graham's line from the first event, "Hillary Clinton has a list a mile long to help the middle class."

He said every Republican on the debate stage would support defunding Planned Parenthood. "If Hillary Clinton is president that will never happen and that's why we're here," Mook said.

Later, Mook told reporters it was "disturbing" that Jeb Bush "allowed himself to be shushed by Donald Trump." Mook said Trump was "driving the show here. He has a completely out-of-date and out-of-touch philosophy and I think that's a scary prospect in the general election."

Asked about Carly Fiorina, Mook said she got her biggest applause "when she went on a tirade" about defunding Planned Parenthood.

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6:45 p.m.

Chris Christie has had enough of the criticism and counterattacks between billionaire Donald Trump and former tech company CEO Carly Fiorina.

Fiorina was fired. Trump has declared bankruptcy. Christie says Americans don't care.

Christie says: "While I'm as entertained as anyone by this personal back-and-forth about the history of Donald and Carly's career, for the 55-year-old construction worker out in that audience tonight who doesn't have a job, who can't fund his child's education - I gotta tell you the truth - they could care less about your careers."

Continuing his appeal to the middle class, Christie added: "You're both successful people. Congratulations. The middle class in this country who's getting plowed under by Barack Obama and Hillary Clinton, let's start talking about those issues tonight and stop this childish back-and-forth between the two of you."

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6:40 p.m.

Billionaire Donald Trump is advocating for a progressive income tax, speaking out against a flat tax where everyone pays the same percentage no matter how much they earn.

Trump says during the second Republican presidential debate that it's not fair for someone who makes $50,000 a year to pay the same percentage in taxes as a millionaire.

Trump also promises to release a tax reform plan in a couple weeks that hedge fund managers won't like, but that those in the middle class will.

Kentucky Sen. Rand Paul disagrees, saying a flat 14.5 percent tax on everyone is the way to go.

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6:35 p.m.

Carly Fiorina and Donald Trump are trading barbs about their business records.

Fiorina says the roughly 30,000 layoffs she oversaw as CEO of Hewlett-Packard from 1999 to 2005 are an example of "tough calls" the next president will have to make. She argues the job cuts took the country from "lagging behind to leading."

Trump called the technology firm a "disaster," blaming another 30,000 layoffs announced by the company this week on Fiorina's leadership. He says, "She can't run any of my companies."

Fiorina has fired back, pointing to debt and bankruptcies stemming from Trump's casino investments. She retorts, "Why should we trust to you to manage the finances of this nation any differently than you manage the finances of our casinos?"

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6:25 p.m.

Former Hewlett-Packard CEO Carly Fiorina says President Obama and Democrats don't want to solve the problem of illegal immigration.

She says Obama and Democrats want to have the issue as one to use against Republicans.

Republican positions on immigration were a focus of the second GOP presidential debate.

Donald Trump says he agrees with Fiorina that Democrats don't want to solve the immigration problem. Trump also defends his position that citizenship should not be given automatically to children born in the United States. He says the U.S. is "dumb" and "stupid" for allowing that through the 14th Amendment.

He says as president he would end birthright citizenship.

Fiorina says, "You can't just wave your hands and say the 14th Amendment is going to go away."

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6:20 p.m.

Jeb Bush says Donald Trump needs to apologize for attacking the background of his wife.

Columba Bush is an American citizen born in Mexico. Trump has suggested Bush is too soft toward immigrants because of his marriage. At the second GOP presidential debate, Bush demanded that Trump apologize to her.

Trump said he hears "phenomenal things" about Columba Bush but wouldn't apologize. He said his words have been misconstrued and stood by his criticism of Bush for answering some questions from reporters in Spanish. He said people in the United States should speak English.

Bush said he's showing respect to people who speak both languages. Florida Sen. Marco Rubio jumped in and said it's important to speak Spanish to communicate with immigrants who may become Republican voters. He recounted stories of his grandfather, a Cuban immigrant whose English was shaky but who idolized Ronald Reagan.

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6:15 p.m.

Fiorina was asked to respond to one of the most biting insults of the 2016 campaign: "Look at that face," Trump had said of her recently, going on to appear to say she didn't have the looks to be president.

Fiorina used another of Trump's comments as a comeback. On the stage, he had just called out Bush for trying to walk back comments on funding women's health care.

"You know it's interesting to me, Mr. Trump said that he heard Mr. Bush very clearly in what Mr. Bush said. I think women all over this country heard very clearly what Mr. Trump said," she said, drawing loud applause from the live audience.

Trump, looking sheepish, said, "She's got a beautiful face, and she's a beautiful woman."

On the split screen on CNN, Fiorina didn't visibly react.

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6:10 p.m.

Former Hewlett-Packard CEO Carly Fiorina says Republicans in Congress should stand fast on defunding Planned Parenthood even if it triggers a government shutdown.

Fiorina spoke at the second Republican presidential debate. She said undercover videos of Planned Parenthood officials purportedly selling fetal organs make it a moral imperative to do anything possible to stop the organization. Planned Parenthood says it provides fetal tissue for medical research, charging a minor fee to cover costs.

Fiorina said, "This is about the character of our nation."

She won the first standing ovation of night when she added, "If we will not stand up and force President Obama to veto this bill, shame on us."

Former Florida Gov. Jeb Bush also condemned Planned Parenthood and defended his statement that the federal government should spend less on women's health care. He said he was talking specifically about Planned Parenthood but he has been attacked repeatedly by Hillary Clinton for the line.

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6:05 p.m.

New Jersey Gov. Chris Christie is touting his anti-abortion rights record but stopping short of saying he'd shut down the government to defund Planned Parenthood.

Asked three times whether he would press to defund the women's health organization even if it results in a government closure, Christie punted on the question.

Christie says he'd put it "on the list" of issues that Republicans should use to force a compromise from President Barack Obama, along with tax legislation.

Christie has described the past government shutdown, which Republicans forced over the health care law, as a political misstep for the GOP.

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Jeb Bush Is In The Worst Spot...

5:55 p.m.

In an exchange on gay marriage and religious liberty, former Arkansas Gov. Mike Huckabee argued forcefully for the right of Kentucky county clerk Kim Davis to defy the Supreme Court's decision legalizing gay marriage. "I thought that everyone here passed ninth-grade civics. The courts can't legislate," he said. "I thought we had three branches of government."

Huckabee declined to criticize former Florida Gov. Jeb Bush for saying Davis does not have the right to deny gays marriage licenses. Bush said he supports defending the rights of religious people to refuse to endorse gay marriage, but he said someone else in Davis' office should sign the certificates since the Supreme Court ruling is the law of the land.

"I think there needs to be accommodation for someone acting on their faith," he said.

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5:53 p.m.

Donald Trump says President Barack Obama doesn't have courage.

The billionaire, asked whether Congress bears responsibility for the Syrian refugee crisis, says he would have gone in with "tremendous force" when the Syrian regime attacked its own people.

That was in response to a question about whether Congress is responsible for backing Obama, who refused to order military action after the Assad regime attacked Syrians.

Trump says: "Somehow he just doesn't have courage. There's something missing from our president."

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5:51 p.m.

Kentucky Sen. Rand Paul and former Florida Gov. Jeb Bush say the next president should not immediately reverse the nuclear agreement with Iran.

The Republican party was staunchly against the deal cut by the Obama administration. Several GOP candidates have vowed to overturn the agreement, should they win the White House.

Paul took a different approach, saying it would be "absurd" to "cut up the agreement immediately."

Bush echoed that position, saying "it's not a strategy to tear up an agreement." Instead, he would strengthen ties with Israel, a move he says will create "a healthier deterrent effect than anything else I can think of."

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5:45 p.m.

Donald Trump says as president he would get along better with world leaders, including Russia's Vladimir Putin, than President Obama and that will make the world more stable.

Trump says Putin has "absolutely no respect for President Obama."

Florida Sen. Marco Rubio says Putin is "trying to replace us as the single most important power broker in the Middle East."

And former Hewlett-Packard CEO Carly Fiorina says Russia is a bad actor and the only way to stop Putin is to show "strength and resolve." She says she would rebuild the U.S. missile defense system as part of her foreign policy strategy.

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5:40 p.m.

Jeb Bush and Donald Trump are mixing it up over big-money donors' influence.

Trump has contended that Bush and others are puppets of their campaign contributors. At the second Republican presidential debate, Bush shot back. He said Trump once gave him money hoping to expand casino gambling in Florida while Bush was governor there. But Bush stood firm.

Trump denied he wanted the gaming expansion. The two men began to argue.

Bush noted that Hillary Clinton attended Trump's most recent wedding and said the developer has praised House Democratic leader Nancy Pelosi. Trump said he had to get along with all politicians and quipped that Bush has "more energy." He has been making fun of what he calls Bush's low-energy presentation for weeks.

Retired neurosurgeon Ben Carson jumped into the exchange. He's risen in polls to just behind Trump and boasted he has refused to court big donors. Carson said he would not "lick the boots of billionaires."

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5:32 p.m.

Ohio Gov. John Kasich figuratively is waving his arms at the start of the debate, which has quickly turned into a group attack on Donald Trump.

Kasich says anyone tuning into the debate would see it and change the channel.

He says with desperation in his voice: "People want to know what we're going to do to fix this place. It may be buzzing out there. But I think it's important that we get to the issues."

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5:35 p.m.

Neurosurgeon Ben Carson is declining to single out his rivals for attack, saying he's running because he concerned about the country's divisiveness and fiscal state.

He says, "I don't want to really get into describing who's a politician and who's not."

Carson has cast himself as an outsider running above the political fray.

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5:29 p.m.

Scott Walker is asserting himself early in the second Republican presidential debate by going after front-runner Donald Trump.

Walker tells Trump: "We don't need an apprentice in the White House. We have one right now." And he says Trump has put projects into bankruptcy and he can't do that to America.

Trump says he would do better than Walker has leading Wisconsin since 2011, saying the state is losing $2.2 billion. The state faced that shortfall heading into this year, but Walker signed a budget in July that eradicated it.

Walker says he is someone who will take on the special interests in Washington and fight for average Americans.

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5:28 p.m.

Kentucky Sen. Rand Paul is unveiling a new line of attack against Donald Trump at the opening of tonight's debate: He's too brash to lead.

Paul is arguing that Trump's temperament would make him untrustworthy in high-level international negotiations.

Paul says he's worried about having Trump in control of the U.S. nuclear arsenal, citing his "careless language" and attack on people's appearances.

Trump quickly shot back with a slam on Paul: "I never attacked him on his looks and believe me there's plenty of substance right there."

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5:25 p.m.

Former Hewlett-Packard CEO Carly Fiorina isn't saying whether she trusts Donald Trump in control of the country's nuclear arsenal.

Fiorina punted on the first question posed in the second Republican presidential debate, about whether she felt comfortable with Trump having access to the nuclear launch codes.

Instead, Fiorina calls Trump a "wonderful man," adding that "all of us will be revealed over time and under pressure."

She says whether Trump can be trusted with nuclear weapons is for voters to decide.

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5:20 p.m.

In introducing themselves, several Republican candidates for president are genuflecting at Ronald Reagan's tomb, not far from the library where they are debating.

Ohio's John Kasich points behind him at the Air Force One: "I actually flew in that plane."

Florida's Marco Rubio credits Reagan for inspiring his public service and "love of country."

And Wisconsin's Scott Walker says he is in the mold of Reagan, whom America needs "now more than ever."

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5:18 p.m.

Gov. Chris Christie is kicking off the second GOP presidential debate by saying Barack Obama has drained America of hope.

The New Jersey governor used his introduction to ask CNN to turn the camera from him to the audience. He asked the crowd in the Ronald Reagan Presidential Library to raise their hands if they believed their children had a better future due to Barack Obama. No hands went up.

Christie promised to reverse that.

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5:12 p.m.

The debate between top-tier Republican presidential candidates is under way. Eleven candidates are opening the debate with introductions.

Former Arkansas Gov. Mike Huckabee took a shot at Democratic front-runner Hillary Rodham Clinton and her use of a private email server while secretary of state.

Former neurosurgeon Ben Carson says he's in the race because he's concerned about the future for America's children.

Front-runner Donald Trump reminds the crowd he's "made billions and billions of dollars."

SEE MORE DEBATE COVERAGE AT AOL.COM

4:45 p.m.

The closing question for the first debate encapsulated the 90-minute debate, with two candidates calling for a pragmatic approach to politics, and the others calling for a hard turn to the right.

Bobby Jindal says, arguing for cleaning House in the GOP-held Congress, "I'm angrier the Republicans in Washington than I am at the president," a Democrat.

George Pataki says Republicans cannot govern without appealing to more voters, which means a more progressive approach to immigration. It doesn't matter, he says, "if you don't win."

Rick Santorum touts being outside of government, after losing re-election to the Senate almost a decade ago: "It's time," he says, "to get someone who is an outsider."

Graham, capping the program with a pragmatic note, took a closing shot at Donald Trump. "Our leading candidate gets his foreign policy from watching television." Graham says, adding, "And what I heard last night is the Cartoon Network."

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4:40 p.m.

Louisiana Gov. Bobby Jindal is arguing that Republicans could learn a lesson from their Democratic adversaries.

Jindal says the GOP must take principled stances, noting that House Speaker Nancy Pelosi and Senate Minority Leader Harry Reid "fight for what they believe in."

His remarks came in the midst of a larger dispute with South Carolina Sen. Lindsey Graham over whether the Republican party should compromise with Democrats for political gains.

Graham argues that the party should accept the health care law and other political realities of the Obama era. Graham says, "I'm trying to lead this party to winning."

Jindal takes a different approach, saying Republicans must take steps like defunding Planned Parenthood even if their efforts result in a government shutdown.

He says, "If we can't win on that issue ... it is time to get rid of the Republican party, start over with a new one that's at least conservative."

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The latest: GOP candidates reveal code names they'd like to have as president

Business mogul Donald Trump (R)

(AP Photo/Charles Rex Arbogast)

Senator Bernie Sanders of Vermont (D)

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Neurosurgeon Ben Carson of Maryland (R)

(Photo/Paul Sancya)

Former Florida Governor Jeb Bush (R)

(AP Photo/Phelan M. Ebenhack)

Senator Rand Paul of Kentucky (R)

(AP Photo/Carolyn Kaster)

Senator Marco Rubio of Florida (R)

(AP Photo/Wilfredo Lee)

Former Secretary of State Hillary Clinton of New York (D)

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Former Senator Rick Santorum of Pennsylvania (R)

(AP Photo/Keith Srakocic)

Former Arkansas Governor Mike Huckabee (R)

(Photo by Matt Sullivan/Getty Images)

Former CEO, Businesswoman Carly Fiorina of California (R)

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Senator Ted Cruz of Texas (R)

(AP Photo/Andrew Harnik)

Former New York Governor George Pataki (R)

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Senator Lindsey Graham of South Carolina (R)

(Photo by Jessica McGowan/Getty Images)

Former Maryland Governor Martin O'Malley (D)

(AP Photo/Charlie Neibergall)

New Jersey Governor Chris Christie (R)

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Ohio Governor John Kasich (R)

(AP Photo/Charlie Neibergall)

Former Virginia Governor Jim Gilmore (R)

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4:26 p.m.

South Carolina Sen. Lindsey Graham says he would "absolutely" bomb Iran if he believed the country was close to having a nuclear weapon.

Graham says the Iranian nuclear deal is a "nightmare" for Israel and he would cancel the agreement and put a better one in place to stop Iran from getting a nuclear weapon.

Former New York Gov. George Pataki says he would work with Israel to ensure that Iran never gets a nuclear weapon.

And former Pennsylvanian Sen. Rick Santorum says on his first day as president he would tell the Iranian government it has to open all its nuclear sites to inspection "or else we will take out those facilities."

He says that would stop a war, not start one.

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4:20 p.m.

Former Pennsylvania Sen. Rick Santorum is making a hard pitch for a higher minimum wage, a position uncommon among the Republican presidential candidates.

He says it's not just economic, it's a way Republicans can win.

Santorum says, "How are we gonna win if 90 percent of Americans don't think we care about them and their chance to rise in America?"

However, South Carolina Sen. Lindsey Graham says a federal increase in the minimum wage would hurt businesses. Referring to his parents' business when he was a child, Graham says, "I don't know if my parents could have afforded a 50-cent increase."

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4:06 p.m.

A CNN production employee sitting in the spin room away from the auditorium broke into the video feed in the news media filing center, interrupting the argument between Lindsey Graham and Bobby Jindal over term limits.

The unidentified employee was unaware he was on camera, rather than the candidates in the Reagan library, until well into the interruption. He looked up, suddenly surprised to see himself on the monitor.

"This doesn't sound good," he says, before the feed returned to the debate stage.

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4:05 p.m.

South Carolina Sen. Lindsey Graham is making fighting terrorism the overarching theme of his debate performance.

When asked about gay marriage, Graham said the Supreme Court ruling has made same-sex marriage the law of the land.

Then he quickly pivoted to his issue of choice: "Radical Islam would kill you all if it could," he said. "Let's not lose sight of the big picture."

His remarks came amid a larger dispute over whether Kim Davis, the Kentucky clerk who refused to issue marriage licenses to gay couples, was acting legally.

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3:55 p.m.

Former New York Gov. George Pataki says Kentucky clerk Kim Davis should have been fired for refusing to issue a marriage license to a same-sex couple.

But former Pennsylvania Sen. Rick Santorum, speaking in the second-tier Republican presidential debate, equates her decision with Martin Luther King's civil disobedience. Santorum says Davis has a fundamental right under the First Amendment to deny the license. He says there has to be room in America for such a demonstration of religious beliefs.

Pataki says there is a "huge difference" between standing up for religious beliefs and ignoring the rule of law as an elected official.

South Carolina Sen. Lindsey Graham says he doesn't agree with the Supreme Court's ruling, but since same-sex marriage is legal the law must be followed.

Republican Debate: Top-Tier Candidates Seek to Reclaim Momentum From Trump
3:51 p.m.

The second-tier Republican presidential contenders are discussing the case of a 14-year-old arrested for bringing a homemade clock to his high school.

At the GOP presidential debate, Louisiana Gov. Bobby Jindal was asked about the case of Texas student Ahmed Mohammed. Police suspected the boy's science project was a bomb. President Obama tweeted in Ahmed's support earlier Wednesday.

Jindal said the country shouldn't back off its vigilance against Islamic extremism and said the greatest discrimination in America is against Christians. He did say a 14-year-old should not be arrested for bringing a clock to school.

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3:45 p.m.

Louisiana Gov. Bobby Jindal says the answer to the Syrian refugee crisis is not allowing more people to come into the United States.

Jindal says in the second-tier Republican presidential debate that the answer is to hunt down and "destroy" the Islamic State. He says enemies do not fear or respect the U.S.

South Carolina Sen. Lindsey Graham says blame rests with President Obama. He says the president's policies for combating Islamic terrorists are not working.

Former New York Gov. George Pataki references the Sep. 11 terrorist attacks, saying the U.S. is at greater risk of attack now than then.

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3:40 p.m.

South Carolina Sen. Lindsey Graham and former Pennsylvania Sen. Rick Santorum are vigorously arguing over immigration reform.

Graham supports allowing people in the country illegally to stay, arguing in part that Hispanic voters are an untapped source for Republicans. Graham says sharply, "In my world Hispanics are Americans."

Santorum says he had a bill in 2006 to address illegal immigration, though it did not advance in the Senate.

Santorum, who supports slowing legal immigration, says, "American workers are being hurt by immigration."

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3:35 p.m.

The Republican presidential candidates are fighting over whether the U.S. should immediately deport 11 million undocumented immigrants already living in the country.

Former Pennsylvania Sen. Rick Santorum is accusing much of the GOP field of supporting "amnesty" by proposing plans to legalize some illegal workers.

Former New York Gov. George Pataki and South Carolina Sen. Lindsey Graham say deporting millions of people is impossible. Says Graham: "I'm trying to fix the problem. We're not going to deport the 11 million here."

All four candidates say they would secure the border and crack down on local officials who opt not to prosecute illegal immigrants.

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3:35 p.m.

Donald Trump isn't in the second-tier GOP presidential debate but he's still dominating it.

The first several questions were about the reality show star and front-runner. Louisiana Gov. Bobby Jindal defended his attacks of Trump. He argued the developer "isn't serious." Former Pennsylvania Sen. Rick Santorum said he'd spend his time attacking Democrat Hillary Clinton rather than other Republicans. Former New York Gov. George Pataki was asked about his statement that he wouldn't support Trump if he were the Republican nominee.

That led Pataki to complain about all the opening questions being about Trump.

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3:30 p.m.

The immigration portion of the Republican presidential debates was well under way in California hours before the candidates begin talking.

Dozens of protesters angry about Republicans who oppose citizenship for millions of people in the U.S. illegally gathered at the entry to the Ronald Reagan Presidential Library compound.

Immigration advocates in Latino-heavy southern California are beating drums and carrying signs that say, "Are you going to deport me?"

There are also people wearing oversized papier mache caricature heads of businessman Donald Trump, Florida Sen. Marco Rubio and Wisconsin Gov. Scott Walker. Trump and Walker have taken a harder line on immigration, while Rubio has stepped back from his support for a path to citizenship for people in the country illegally.

3:20 p.m.

The first question in the second-tier GOP presidential debate is for Louisiana Gov. Bobby Jindal. CNN reporter Jake Tapper has asked Jindal why he is violating Ronald Reagan's famous dictum to not attack other Republicans. Jindal has been explicitly attacking Trump for days.

Jindal replied that Trump "is not a conservative" and GOP candidates should stop treating him like a Republican. Reagan's rule, Jindal said, doesn't apply to Trump.

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3:15 p.m.

The early debate among the second-tier of Republican candidates for president is under way.

The four candidates whose polling numbers didn't qualify them for the main event starting at 5 p.m. are introducing themselves to the crowd at the Reagan Library in southern California. They are former Pennsylvania Sen. Rick Santorum, former New York Gov. George Pataki, Louisiana Gov. Bobby Jindal and South Carolina Sen. Lindsey Graham.

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2:30 p.m.

The 16 Republican candidates are poised to take the stage for the marathon pair of debates, President Ronald Reagan's plane at their backs and a trio of questioners before them.

First up: Four candidates who did not qualify for the top-tier group debating later. They are former Sen. Rick Santorum, former New York Gov. George Pataki, Louisiana Gov. Bobby Jindal and South Carolina Sen. Lindsey Graham. Some of what they say, if interesting enough, could be played at the later debate between 11 hopefuls who performed better in the polls, according to sponsor CNN.

The main event includes 10 men and one woman - business executive Carly Fiorina - arrayed shoulder-to-shoulder. At center, front-runner Donald Trump. On either side: retired neurosurgeon Ben Carson and former Florida Gov. Jeb Bush. The others will be arrayed outward, with Kentucky Sen. Rand Paul and New Jersey Gov. Chris Christie at the ends.

Altogether, the event is expected to last about five hours.

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