WATERLOO, Iowa - Hillary Clinton accused Republicans of undermining American efforts to fight Islamic terrorism, saying Wednesday that the "hateful" campaign rhetoric of front-runner Donald Trump and the rest of the GOP field was providing new material for Islamic State propaganda.

"Instead of showing leadership, some of the leaders in this campaign are resorting to really hateful rhetoric," Clinton said at a town-hall meeting. "Donald Trump, he does traffic in prejudice and paranoia. It's not only shameful, it's dangerous."

Trump's proposal to block Muslims from entering the United States has prompted widespread condemnation from lawmakers of both parties and from leaders across the globe.

Clinton said that while Trump's GOP rivals use "veiled language" to talk about their plans, their remarks are also undermining efforts of U.S. negotiators to build a global coalition against the Islamic State.

Retired neurosurgeon Ben Carson has questioned whether a Muslim American could be president. Former Florida Gov. Jeb Bush and Texas Sen. Ted Cruz have floated the idea of a religious test for Syrian refugees fleeing violence in the Middle East.

"That runs counter to what I and others who've actually been in the situation room know we have to do," Clinton said. "We have to enlist help from American Muslims around the world in defeating the radical jihadist and the hateful ideology."

Trump fired back, singling out Clinton as his top competitor during a television appearance Wednesday morning.

"She doesn't have the strength or the stamina," he said on Live With Kelly and Michael. "I mean, you know, she's got a name and people will stupidly vote for her."

Clinton was spending the day campaigning in Iowa. Though her mention of Trump's name drew boos from the largely elderly crowd, the audience did not raise the issue of terrorism or the conflict in the Middle East. Instead, questioners focused largely on domestic issues, like health care and child-care costs - a reflection of the economic concerns that remain central in the Democratic primary battle.

Clinton is promoting her plans to stop corporate inversions, a practice that permits U.S. companies to merge with corporations overseas to lower their tax bill.

"If you become successful in America," said Clinton, "you should pay what you owe just like everybody else." She added, "This is not only about fairness, this is about patriotism."