On Tuesday, Paul outlined his views to high school and college students in Manchester, and didn't hold back.
He described U.S. military spending as a subsidy that allows other countries to spend more on their own economies. Federal spending on education only pushes up costs, he said.
He inspires a loyal following, attracted by his no-nonsense attacks on government spending.
STICKS TO HIS BELIEFS
At a Manchester town hall on Monday night, voter Sylvia Tobin, 23, said Paul's "rigidity" was a positive for her. "He has his beliefs, and sticks to them," she said.
"My family is very into Ron Paul. He has the guts to face pressure from the press, and from lobbyists," said Sylvain, a French immigrant who asked that only his first name be used.
He plans to cast his first vote as a U.S. citizen for Paul in the New Hampshire primary.
Success in the polls will bring out much more intense scrutiny from the media and from Paul's Republican rivals.
"He has positions on issues that elements of the Republican Party are going to see as extreme. If Paul manages to win Iowa there is going to be this reaction among Republican elites, who are going to say 'look we can't put Paul forward, we need a safe candidate,'" said Dante Scala, a political scientist at the University of New Hampshire.
Already, Paull has had to deal with the fallout of racist commentary in newsletters that went out under his brand in the 1980s and 1990s, with titles such as " Ron Paul's Freedom Report" and the "Ron Paul Political Report."