CNN: Three of the four Republican candidates for president will make a flurry of campaign appearances across Nevada on Friday as they seek to get out the vote just a day before the state's caucuses. Front-runner Mitt Romney, who was endorsed by celebrity business magnate Donald Trump on Thursday, former House Speaker Newt Gingrich and Rep. Ron Paul will hold a series of rallies throughout the state. Former Pennsylvania Sen. Rick Santorum has moved his campaigning ahead to Missouri, which holds a nonbinding primary Tuesday.