Las Vegas, Nevada (CNN) - The battle to challenge the top Democrat in the Senate will reach a climax on Tuesday as voters decide the winner of what one campaign described as a "slugfest."
Nevada's Republican Senate primary pits the Tea Party Express-backed Sharron Angle against party establishment favorite Sue Lowden and Danny Tarkanian, who has seen growing support in recent days.
Angle is a former Nevada assemblywoman, Lowden is a businesswoman and former Nevada GOP party chairwoman. Tarkanian, also a business executive, was a basketball star for the University of Nevada-Las Vegas.
The winner will challenge the presumptive Democratic nominee, Senate Majority Leader Harry Reid, a top political target of conservatives and national Republicans.