U.S. Senate Majority Leader Chuck Schumer is causing Republicans’ heads to explode with his latest move to disrupt the upcoming Senate orientation. It has been reported that Schumer, a prominent Democrat, will not allow Dave McCormick (R-PA) to attend the orientation this week in part because Democratic incumbent Bob Casey hasn’t conceded the race. The Associated Press has already called the race for McCormick, but Casey believes he could still pull ahead as the final ballots are counted. Donald Trump’s allies in the Senate didn’t take the news well. Want more breaking political news? Click fo…