Democrats signaled in the runup to the looming conclusion of President Trump's impeachment proceedings that they'll simply refuse to accept his all-but-certain acquittal because his "sham" trial lacked proper witnesses and evidence. Signaling how they will message the saga in the coming months on the campaign trail, top Democratic leaders in the House and Senate argued Trump can never erase the stain of impeachment because the trial wasn’t legitimate. "The president's acquittal will be meaningless," Sen. Chuck Schumer, D-N.Y., declared Friday, "because it will be the result of a sham trial. If there are no witnesses, no documents in this...