Tulsa World. 3/26-4/5. No trend lines.
Republican Primary (MoE 5.4%)
Coburn 34
Humpherys 22
Anthony 12
Undecided 32
General Election Matchup (MoE 3.4%)
Carson (D) 38
Coburn (R) 37
Undecided 25
Humphreys is the choice of the OK GOP establishment, but he's also polling disastrously head-to-head against Carson. Coburn is a "straight shooter" maverick-type, which has appeal to many voters. However, the GOP race is clearly anyone's. And there's plenty of time left. The primary isn't until July 27.
Carson doesn't have any primary opposition.