The Trump campaign's internal polling, which was leaked last week, showed him trailing Joe Biden in several must-win states by wide margins. Brad Parscale, Mr. Trump's campaign manager, said the polls were irrelevant because it was "ancient" data from last March, taken before he was "exonerated" by the Mueller report. But Mr. Trump's post-Mueller-report approval ratings haven't improved. Trump's sub-50 percent approval rating has had the least variation of any president since World War II. Most people have made up their minds about him, and most of them don't like him.