Republican candidates John McCain and Mike Huckabee both told supporters recently that they would win South Carolina, while Mitt Romney hoped to move up from his current spot in fourth place.

Mitt Romney is so sure that he'll lose Saturday in South Carolina that he is heading to a state where thinks he will have a better chance.

"I'm also going to be spending time in Nevada and spending time in Florida and I'm going to go on to 22 other states," he said.

Romney is winning the Repubilcan delegate count after winning Michigan Tuesday night - the biggest delegate prize so far.

Meanwhile, Huckabee is still working on South Carolina, and attacking a big issue there: immigration. After receiving criticism from GOP opponents that he is "soft" on illegal immigration, he signed a "No Amnesty Pledge" in front of voters yesterday.

"The two aspects of illegal immigration are those that come across the border that we don't know have come across the border, and those that come across the border that we do know have come, but we just cease doing anything about it once they get here. In both cases it shows a breakdown in the federal government. Look I've made it very clear I don't begrudge anybody wanting to come. I'd want to come too. But people ought to come through the front door, not the back door. They ought to come legally," he told crowds.

In 2000, McCain wavered when asked whether he thought the Confederate flag should be flown over the South Carolina statehouse. This year, he had a firm reply.

"I cannot be more proud of the overwhelming majority of the people of this state who have joined together, taken that flag off the capitol put it into the place where it belongs," he said.

Polls show that Hillary Clinton, Barack Obama and John Edwards in a statistical dead heat in Nevada, ahead of Saturday's caucuses.

But after a televised debate on Tuesday night that saw no big moments, Hillary Clinton had a little fun aboard her campaign plane. The presidential hopeful got on the plane's announcement system and gave a message to the plane's passengers:

"In the event of an unexpected drop in poll numbers, this plane will be diverted to New Hampshire. If you look out from the right, you will see an America saddled with tax cuts for the wealthiest and a war without end. If you look out from the left, you will see an America with a strong middle class at home and a strong reputation in the world. Once we've reached cruising altitude, we'll be offering in flight entertainment: my stump speech in its many variations. Once again, thank you for joining us on Hill Force One. We know you have choices when you fly, and so we are grateful that you chose the plane with the most experienced candidate."

The big issue in Nevada for Saturday's Democratic caucus is who will vote, and how will they get to do it? The latest controversy involves using casinos as caucus sites. The state's caucus rules were set up last year to ensure that casino employees, who often work Saturdays, could vote.

Many of those workers belong to the Culinary Union, which has endorsed Barack Obama. A lawsuit in progress this morning challenges the constitutionality of the at-large  precints. The suit claims the casino workers are given an unfair advantage over other voters who might also be working.

The Clinton campaign, who has the most to lose by the caucus sites, says it is not behind the lawsuit.