Hillary Clinton opens up about her greatest political regret and her first goal if elected

With decades of political experience under her belt, Hillary Clinton finds herself in a familiar position with less than one week to go until the Iowa caucuses -- but she insists this time it is different.

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Not only are the crowds bigger and more energetic, she says, but she is too.

"I'm different," she tells AOL.com on the ground in Iowa. "I feel that I've learned a lot, I think my experience as secretary of state has given me additional understanding of what the next president has to do."

Clinton champions her role in the Obama administration and the president's achievements as she makes her appeal to voters in Iowa and across the country. She's quick to cheer on Obamacare, but when asked about her greatest political regret, health care looms large.

See images of Clinton through the years:

"I regret we didn't get health care back in 1993 or '94, because we'd really be much further down the road," she says.

Clinton and her primary Democratic rival Sen. Bernie Sanders have debated the issue intensely. Sanders has advocated a new health care plan that he's dubbed "Medicare for all," while Clinton advocates building on the Affordable Care Act instead.

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"Health care is a basic right," she says. "We are 90 percent covered, we gotta get to 100 percent, and then we gotta get cost down and make it work for everybody. And even though we didn't get it then, we've got it now and I'm going to defend it and improve it."

Her number one priority, she says, is improving incomes.

"The first thing is I really want to do is get the economy producing more good jobs with rising incomes," she explains. "That's at the center of my agenda."

"Because there's a lot we need to do in the country, we gotta make college affordable, we gotta student debt paid down, we've gotta make sure we get early childhood and paid family leave and raise the minimum wage, we have a lot of work to do, but it all really starts from just getting the economy to work again and that's my highest priority," she adds.

Watch Clinton's full interview with AOL.com below to find out the greatest threats she predicts the youngest generation of Americans will have to face: