Democrats had one of their most successful moments in the opening minutes of former special counsel Robert Mueller’s appearance before Congress on Wednesday: He countered President Donald Trump’s insistence that he has been exonerated by Mueller’s report into Russian interference in the 2016 presidential election. “The president has repeatedly said that your report exonerated him. That is not what your report said, is that correct?” asked the Judiciary Committee’s chairman, Jerrold Nadler, in the morning Mueller answered, “Right, that is not what the report said.” Nadler: “Did you actually totally exonerate the president?” Mueller: “No.” The president meanwhile was tweeting, “NO COLLUSION, NO OBSTRUCTION,” and again attacking Mueller as a “highly conflicted” investigator with a team of "angry Democrats." “Why didn’t Robert Mueller & his band of 18 Angry Democrats spend any time investigating Crooked Hillary Clinton, Lyin’ & Leakin’ James Comey, Lisa Page and her Psycho lover, Pete...