Okla. Treasurer won't run for Senate

WASHINGTON, Oct. 22 (UPI) -- Oklahoma state Treasurer Robert Butkin says he will not enter the race for the U.S. Senate seat of retiring Republican Don Nickles.

According to the Tulsa World newspaper, Butkin said he was "grateful for the encouragement of many close friends to consider this race" but it was in his family's best interest "to remain in the treasurer's office."

Nickles is stepping down after four terms in the Senate.

U.S. Rep. Brad Carson, D-Okla., has already announced for the seat. State Attorney General Drew Edmondson and Oklahoma City Mayor Kirk Humphreys, a Republican, have also expressed interest in making the race.