The Texas congressman was campaigning Saturday in Maine, which holds caucuses beginning Feb. 4. He spoke to an overflow crowd at the University of Southern Maine and held an outdoor rally outside the famed L.L. Bean store in Freeport. He picked up the endorsement of Linda Bean, the granddaughter of the Bean company founder and a prominent Republican activist in the state.

Paul told reporters that it didn't make sense for him to campaign in Florida, which holds its primary Tuesday and awards all its 50 delegates to the winner. Polling indicates Mitt Romney is leading the field there.

"Some other campaigns have many, many millions of dollars to run a campaign," Paul said. "We maximize the delegates the way we're doing it."

Paul planned to campaign next week in other caucus states, including Nevada, which also holds its caucus on Feb. 4, and Colorado and Minnesota, which hold caucuses Feb. 7.

Paul dismissed suggestions he would back any of his GOP rivals.

"I think that's premature. We have a ways to go," Paul said, adding he was glad they were speaking favorably about some of his libertarian-leaning views.

"I'll work with anybody who wants to come in the direction of Constitutional government," Paul said.

He noted that Newt Gingrich had endorsed his views on monetary policy in a nationally televised debate this week. Paul has called for the Federal Reserve to be audited and ultimately eliminated, and wants the value of the dollar tied to gold.

Paul said he hoped the former House speaker and others would also adopt his noninterventionist foreign policy views, which are far outside the Republican Party mainstream.

"If he says 'I agree with Ron Paul, we should bring the troops home from Afghanistan,' my ears would pop up," Paul said.