Mullin says ‘Let’s rumble!’

Oklahoma Senator Markwayne Mullin says he has had enough of Teamsters Union representative Sean O’Brien’s mouthing and snippy tweets.

Mullin says the time for mouthy talk is past... he wants a real tussle with the boss of the International Brotherhood of Teamsters.

Mullin (R-Okla.), who has been credited by some as having an unbeaten mixed martial arts cage-fighting record, formally challenged Teams…