Guilty verdicts in the most consequential January 6 trial will be the green light the Justice Department has been waiting for to go after the former president.Of the hundreds of video clips used as evidence in the marathon trial of five members of the Proud Boys, prosecutors began closing arguments not with a clip of the defendants engaged in criminal activity but with a clip of Donald Trump. The government showed the jury a portion of the September 2020 presidential debate; goaded by Joe Biden and then-Fox News host Chris Wallace to condemn “white supremacists and militia groups” in an...