Seven Republican presidential hopefuls took the stage in Manchester, New Hampshire on Monday.
The debate at St. Anselm College is not the first, but some political experts are calling it the biggest event of the presidential campaign so far.
Former Massachusetts Governor and front-runner Mitt Romney was joined by Michele Bachmann, Herman Cain, Newt Gingrich, Ron Paul, Tim Pawlenty, and Rick Santorum.
Mitt Romney Tim Pawlenty went head to head on the health care issue.
When the candidates were asked how they would stop Obamacare, Romney said he would make health care a state issue. The former Governor of Massachusetts said that state's plan didn't raise taxes and didn't take money out of Medicare.
Tim Pawlenty was asked if it was fair to compare Obamacare to Massachusetts' plan, calling it "Obamneycare" in an earlier media interview. After evading the question a few times, Pawlenty said it was fair because he says the President looked to Massachusetts for designing his program.
Then, Romney and Texas Congressman Ron Paul disagreed on how quickly to withdraw U.S. troops from Afghanistan.
Romney said at a Republican presidential debate Monday that generals in Afghanistan should guide the pullout schedule based to conditions on the ground. He said the troops should come home as soon as possible under those conditions.
Paul said the president must tell generals what to do. He said if he were president he would begin withdrawing troops almost immediately. He said the United States has no purpose fighting a war in Afghanistan.