[Above, that gun-toting whack job is, of course, speaking at GOP events and mulling a Senate race. -- eds] Tiger Beat [aka Politico] tells us that Mark McCloskey, the infamous gun-toting St. Louis attorney who drew headlines last year for brandishing an assault rifle at Black Lives Matter protesters, is thinking about running for the US Senate seat in Missouri. McCloskey, a wealthy personal-injury lawyer, said that he had no timeline for making a decision about whether to enter the race for the seat from which Republican Sen.