Sen. Markwayne Mullin (R-OK) was questioned by CNN’s Jake Tapper on former President Donald Trump’s new threats to use the military against his political opponents — and sat there stunned as the senator immediately pivoted to an attack on the FBI for investigating participants in the Jan. 6 attack on the U.S. Capitol. “President Trump, in the last few days, not only called his political opponents ‘the enemy from within,’ he suggested he would like to use the National Guard or the military on them,” said Tapper, playing a clip of the exchange. “He went on to talk about Congressman Adam Schiff a…