Of Florida Sen. Marco Rubio, Coburn called him “of all that are out there right now probably my favorite.”

Coburn said Wisconsin Gov. Scott Walker is “not ready for primetime in my opinion.” He said Walker didn’t win the recall election in 2012 but “Republicans around the country did it for him.”

Coburn said he had “a personal bone to pick with him on integrity that I witnessed” with retired neurosurgeon Ben Carson. The former senator said Carson was asked not to attack President Obama in his National Prayer Breakfast speech but said “his speech was nothing but an attack on the president.”…

He said Texas Sen. Ted Cruz was “not ready for primetime.”