Representative Dean Heller, Republican of Nevada, said on Tuesday that he will run for the Senate seat being vacated by Senator John Ensign next year.
Mr. Ensign, a Republican, announced he would not run for reelection after being dogged by a sex scandal involving an affair he had with a staffer. Mr. Heller, a former secretary of state, made his intentions clear in an e-mail message to supporters.
Heller is a conservative who represents Nevada's second district, which encompasses everywhere in Nevada outside of Las Vegas and its suburbs. That should put him in a good position to win the nomination. But it's worth keeping an eye on the Nevada GOP senate primary if a die-hard Tea Partier enters the race.