BOSTON, Sept 28 (Reuters) - A 2014 New Hampshire law prohibiting voters from taking selfies with their ballots on election day is an unconstitutional infringement on the right to free speech, a federal appeals court ruled on Wednesday.
The New England state had banned the practice, which has become a popular way for voters to show support for favored candidates, claiming that it would set the stage for a return of the vote-buying scandals that rocked many U.S. states in the 19th century.
Three New Hampshire citizens, including a man who wrote in the name of his dog to express dismay at his choices in the 2014 Republican primary for the U.S. Senate, sued the state that year claiming the measure violated their rights to free expression, as protected by the First Amendment of the U.S. Constitution.
RELATED: 2016 candidates take selfies on the campaign trail
2016 candidates taking selfies
2016 candidates taking selfies
Former Maryland Gov. Martin O'Malley, left, takes a selfie with Harrison Adamec, 5, and his dad Shaun, of Framingham, Mass., during a campaign stop at Goldenrod Drive-in Restaurant, Sunday, May 31, 2015, in Manchester, N.H. O'Malley entered the Democratic presidential race on Saturday in a longshot challenge to Hillary Rodham Clinton for the 2016 nomination, casting himself as a new generation leader who would rebuild the economy and reform Wall Street. (AP Photo/Mary Schwalm)
Republican presidential candidate, former Florida Gov. Jeb Bush, takes a selfie following a meet and greet event in Council Bluffs, Iowa, Tuesday, July 14, 2015. (AP Photo/Nati Harnik)
OAKLAND, CA - AUGUST 10: Independent presidential candidate U.S. Sen. Bernie Sanders (I-VT) takes a selfie with a nurse from the National Nurse United during a 'Brunch with Bernie' campaign rally at the National Nurses United offices on August 10, 2015 in Oakland, California. The National Nurses United members announced their endorsement for independent presedential candidate Sen. Bernie Sanders during a campaign stop before he heads to Los Angeles for a campaign rally in Los Angeles at the Memorial Sports Arena. (Photo by Justin Sullivan/Getty Images)
EDISON, NJ - AUGUST 30: A golf fan takes a 'selfie' with presidential candidate Donald Trump during the final round of The Barclays at Plainfield Country Club on August 30, 2015 in Edison, New Jersey. (Photo by Ross Kinnaird/Getty Images)
Democratic presidential candidate Hillary Rodham Clinton poses for a selfie with supporters during a campaign event, Friday, July 3, 2015, in Hanover, N.H. (AP Photo/Elise Amendola)
Scott Walker, governor of Wisconsin and 2016 Republican presidential candidate, right, takes a selfie photograph with an attendee during the Iowa State Fair in Des Moines, Iowa, U.S., on Monday, Aug. 17, 2015. Like most every other candidate in the historically crowded field, the Wisconsin governor's standing in state and national polls has been hurt by the summer surge of billionaire Donald Trump, the party's front-runner. Photographer: Daniel Acker/Bloomberg via Getty Images
ANAHEIM, CA - SEPTEMBER 09: Physician Tamara Hoover (C) takes a selfie with Republican presidential candidate Ben Carson cheer during a campaign rally at the Anaheim Convention Center September 9, 2015 in Anaheim, California. Carson's poll numbers have surged nationally and in the early voting state of Iowa following his performance in the first Republican debate on August 6 to the point where he now trails only frontrunner Donald Trump. (Photo by Kevork Djansezian/Getty Images)
Senator Bernie Sanders, an Independent from Vermont and 2016 U.S. presidential candidate, left, takes a 'selfie' photograph with an attendee during a town hall meeting in Davenport, Iowa, U.S., on Thursday, May 28, 2015. Sanders formally joined the 2016 Democratic presidential race this week, hoping to start 'a political revolution to transform our country economically, politically, socially and environmentally.' Photographer: Daniel Acker/Bloomberg via Getty Images
Ben Carson, 2016 Republican presidential candidate, stands for a selfie photograph with an attendee following a service at Maple Street Missionary Baptist Church in Des Moines, Iowa, U.S., on Sunday, Aug. 16, 2015. Carson will be speaking at the Iowa State Fair, which is expected to host 18 presidential candidates and runs until Aug. 23. Photographer: Daniel Acker/Bloomberg via Getty Images
DES MOINES, IA - APRIL 15: Democratic presidential hopeful and former Secretary of State Hillary Clinton (R) stops to take a selfie after meeting with members of the Iowa State legislature at the Iowa State Capital on April 15, 2015 in Des Moines, Iowa. Hillary Clinton continues to campaign throughout Iowa as she makes her second bid for President of the United States. (Photo by Justin Sullivan/Getty Images)
DES MOINES, IA - AUGUST 13: Democratic presidential hopeful and former Maryland Gov. Martin O'Malley (C) takes a selfie in front of the Butter Cow with his children Grace (L) and William (R) during the Iowa State Fair on August 13, 2015 in Des Moines, Iowa. Presidential candidates are addressing attendees at the Iowa State Fair on the Des Moines Register Soapbox stage. The State Fair runs through August 23. (Photo by Justin Sullivan/Getty Images)
Democratic presidential candidate, former Maryland Gov. Martin O'Malley takes a selfie after a meet and greet Sunday, Aug. 23, 2015, in Muscatine, Iowa. (AP Photo/Paul Sancya)
FILE - In this Aug. 26, 2015, file photo, Eden Blackman, 13, from Mobile, Ala., left, takes a selfie with Republican presidential candidate, former Florida Gov. Jeb Bush, after he spoke at the Pensacola Bay Center in Pensacola, Fla. Bush wanted to run for president as a joyful front-runner, above the fray of the pack. Instead, he heads into the fall campaign as a fighter with a foil: Donald Trump. "I believe that a conservative can win, campaigning with his arms wide open, with joy in his heart, speaking about the hopes and aspirations of the people, being on the side of the people that right now donât see their lives in the future being better than what they have today," Bush said in New Hampshire late last week. (AP Photo/Mark Wallheiser, File)
Presidential contender Donald Trump, right, poses for a selfie with Jonathan Lynch, during the second day of the Women's British Open golf championship on the Turnberry golf course in Turnberry, Scotland, Friday, July 31, 2015. (AP Photo/Scott Heppell)
NASHVILLE, TN - AUGUST 29: Republican presidential candidate Donald Trump poses for a photo with a woman speaks at the National Federation of Republican Assemblies (NFRA) Presidential Preference Convention at Rocketown on August 29, 2015 in Nashville, Tennessee. GOP front runner Donald Trump leads most polls in the race. (Photo by Jason Davis/Getty Images)
Donald Trump, president and chief executive of Trump Organization Inc. and 2016 Republican presidential candidate, stands for a selfie photograph after speaking during a rally at Grand River Center in Dubuque, Iowa, U.S., on Tuesday, Aug. 25, 2015. President Barack Obama's top business ambassador dismissed Trump's call for a wall along the Mexico border, saying the U.S. is focused instead on expanding business with one of its biggest trade partners. Photographer: Daniel Acker/Bloomberg via Getty Images
Ben Carson, 2016 Republican presidential candidate, center, is seen on the screen of a smartphone as he poses for a 'selfie' photograph with two attendees while touring the Iowa State Fair in Des Moines, Iowa, U.S., on Sunday, Aug. 16, 2015. In a Sunday interview with Fox News, Carson doubled down on his assertion that a speech given by President Barack Obama intended to sell the American public on his nuclear deal with Iran contained 'coded innuendos employing standard anti-Semitic themes.' Photographer: Daniel Acker/Bloomberg via Getty Images
DENVER, CO - AUGUST 4: Hillary Clinton takes a selfie with a supporter after delivering her speech on August 4, 2015 at La Rumba. Clinton, one of the presidential candidates trying to gain support for the Democratic nomination, held her first campaign event outside of early primary states in Colorado. (Photo By Brent Lewis/The Denver Post via Getty Images)
Republican presidential candidate Sen. Ted Cruz, R-Texas, poses for a selfie taken by a members of the audience after speaking during the Road to Majority 2015 convention at the Omni Shoreham Hotel in Washington, Thursday, June 18, 2015. (AP Photo/Andrew Harnik)
New Jersey Gov. Chris Christie, left, has a selfie taken with a member of the audience during a speaking engagement ahead of this afternoon's convening of the Georgia Republican Convention Friday, May 15, 2015, in Athens, Ga. In addition to Christie, Georgia Republicans will hear from fellow White House hopefuls Florida Sen. Marco Rubio and Texas Sen. Ted Cruz as the party gathers for its annual convention. (AP Photo/David Goldman)
SPARTANBURG, SC - APRIL 3: Senator and GOP presidential candidate Ted Cruz takes a selfie with supporters following a town hall meeting at the Beacon Drive-in restaurant on April 3, 2015 in Spartanburg, South Carolina. The Beacon Drive-in, traditionally a popular venue for campaigning politicians, was Cruz's 2nd stop of the day in South Carolina. (Photo by Richard Ellis/Getty Images)
MIAMI, FL - SEPTEMBER 01: Republican presidential hopeful and former Florida Gov. Jeb Bush takes a selfie photo with a student as he attends a town hall style meeting at La Progresiva Presbyterian School on September 1, 2015 in Miami, Florida. Jeb continues to campaign for the Republican nomination. (Photo by Joe Raedle/Getty Images)
DES MOINES, IA - AUGUST 14: Republican presidential hopeful and former Florida Gov. Jeb Bush (C) takes a selfie with fairgoers at the Iowa Pork Tent during the Iowa State Fair on August 14, 2015 in Des Moines, Iowa. Presidential candidates are addressing attendees at the Iowa State Fair on the Des Moines Register Presidential Soapbox stage. The State Fair runs through August 23. (Photo by Justin Sullivan/Getty Images)
LEXINGTON, SC - JUNE 15: GOP presidential candidate, U.S. Sen. Rand Paul (R-KY) has a selfie taken with a supporter at the VFW Hall on June 15, 2015 in Lexington, South Carolina. Paul took questions and spoke against government intrusion into the lives of citizens. (Photo by Richard Ellis/Getty Images)
LAS VEGAS, NV - JULY 14: Photographer Victor 'The SnakeMannn' Wolder (L) takes a photo with Wisconsin Gov. Scott Walker at Red Rock Harley-Davidson on July 14, 2015 in Las Vegas, Nevada. Walker launched his campaign on Monday, joining 14 other Republican candidates for the 2016 presidential race. (Photo by Ethan Miller/Getty Images)
FLORISSANT, MO - JUNE 23: Democratic presidential candidate and former U.S. Secretary of State Hillary Clinton (R) takes a selfie with kids during a visit to a youth summer camp before speaking to supporters on June 23, 2015 at Christ the King United Church of Christ in Florissant, Missouri. Clinton's visit to the St. Louis suburb neighboring Ferguson, Missouri focused on racial issues. (Photo by Whitney Curtis/Getty Images)
Donald Trump, president and chief executive officer of Trump Organization Inc. and 2016 Republican presidential candidate, takes a selfie photograph with guests after an interview on Bloomberg Television's 'With All Due Respect' in the lobby of the Trump Tower in New York, U.S., on Wednesday, Aug. 26, 2015. Trump said that he agrees the carried interest tax 'loophole' should be eliminated and that it is 'tremendous burden' on country's finances. Photographer: Michael Nagle/Bloomberg via Getty Images
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A federal court in New Hampshire sided with them, but the state appealed, making its case in Boston just two weeks ago. The appeals court swiftly rejected its arguments.
"The statute's purposes cannot justify the restrictions it imposes on speech," Circuit Judge Sandra Lynch wrote in the court's decision.
New Hampshire's argument that ballot selfies could lead to people selling their votes or being compelled by their employers to vote in a certain way fell short in no small part because the state had no evidence of that actually happening, Lynch wrote.
"The legislative history of the bill does not contain any corroborated evidence of vote buying or voter coercion in New Hampshire during the 20th and 21st centuries," she wrote. "Digital photography, the internet, and social media are not unknown quantities -- they have been ubiquitous for several election cycles, without being shown to have the effect of furthering vote buying or voter intimidation."
Lynch also noted that several federal and state laws in effect in New Hampshire already make it illegal to buy or sell a vote, which would allow prosecutors to take on allegations of election tampering even in an environment where selfies were permitted.
Other states, including nearby Rhode Island, have passed laws explicitly allowing ballot selfies, partly reasoning that the trend has helped younger voters show their enthusiasm for the democratic process.