Romney, Clinton collecting most cash in Nevada

On the eve of what debate sponsor CNN is calling the "Sin City Showdown," a nonpartisan watchdog group added up how much the presidential candidates are collecting in Nevada.

Among Democrats, who debate tonight in Las Vegas, Hillary Clinton leads with at least $448,500 in campaign donations from Nevada residents, according to the Center for Responsive Politics.

Republican Mitt Romney leads overall with $715,000 in contributions, the center reported today. Both he and Clinton collected the vast majority of campaign cash from Las Vegas. Nevadans have contributed a total of $2.8 million.

Nevada moved up its caucuses to Jan. 19 to try to elevate issues of concern to voters in the West and to Hispanic voters, but so far it has not drawn as much attention from candidates as party officials expected.