WATCH: U.S. Senate GOP Primary Debate

WATCH: U.S. Senate GOP Primary Debate

Sen. James Inhofe Announces Resignation Plans, Endorses Chief of Staff As Candidate

Sen. James Inhofe Announces Resignation Plans, Endorses Chief of Staff As Candidate

Sen. James Inhofe Announces Resignation Plans

Sen. James Inhofe Announces Resignation Plans

Senate Confirms OU Professor To Science Adviser Post

Senate Confirms OU Professor To Science Adviser Post

Bill Would Designate Route 66 As National Historic Trail

Bill Would Designate Route 66 As National Historic Trail

Millions At Stake Concerning Construction

Millions At Stake Concerning Construction

Grand Jury Witness Claims Attorney Threatened Him

Grand Jury Witness Claims Attorney Threatened Him

US Senate Approves Oklahoma City Attorney As Judge

US Senate Approves Oklahoma City Attorney As Judge

Hispanic community holds a peaceful demonstration

Hispanic community holds a peaceful demonstration

Testimony begins in former insurance commissioner's trial

Testimony begins in former insurance commissioner's trial

Late U.S. senator's relatives consider moving remains

Late U.S. senator's relatives consider moving remains

Senator Tom Coburn says he'll continue practicing medicine

Senator Tom Coburn says he'll continue practicing medicine

Coburn bringing 2004 campaign out of debt

Coburn bringing 2004 campaign out of debt

US Senate resolution recognizes Oklahoma City bombing anniversary

US Senate resolution recognizes Oklahoma City bombing anniversary

Dr Tom Coburn preparing to take US Senate seat, calls for freeze of federal spending

Dr Tom Coburn preparing to take US Senate seat, calls for freeze of federal spending

Voters choose incumbent congressmen in four of Oklahoma's five districts

Voters choose incumbent congressmen in four of Oklahoma's five districts

Brad Carson promises to pull negative ads

Brad Carson promises to pull negative ads

Former President to campaign for Dr Tom Coburn

Former President to campaign for Dr Tom Coburn