(CBS Las Vegas) Voting in the Nevada caucuses is underway. Voters will make their choices known in the race for the Republican nomination and Mitt Romney is the heavy favorite to win in the state. If he claims victory, Romney will have won three states, including New Hampshire and Florida. Newt Gingrich projected confidence yesterday as he rallied supporters in Las Vegas. Ron Paul also made his final pitch to woe people to his camp. Rick Santorum had already moved on, campaigning yesterday in Missouri.