Former Massachusetts governor Mitt Romney captured a clear win Saturday in the Republican caucuses in the western US state of Nevada, projections showed. Romney won more than 40 per cent of the vote, according to incomplete official results from the state's Republican Party. Television networks were able to call the contest for Romney after caucuses ended in Las Vegas, the state's largest city. Texas Congressman Ron Paul and former speaker of the House of Representatives Newt Gingrich were locked in a battle for second place, according to a report of the German Press Agency "DPA". Romney had won two of the previous four state contests this year and hoped to gain momentum from another victory to become Republican challenger for President Barack Obama in the November election.