What is this latest impeachment gambit really about? Of course, it was a Parthian shot to discredit President Trump’s supporters. Donald Trump was impeached again on Wednesday, a week before leaving office in one of the great travesties of modern politics. Here are reasons why the exercise proved a farce. One, impeachment was never intended by the founders to become a serial effort to weaken a first-term president. But this latest try will mark the third failed attempt of Democrats in Congress to remove Trump before his allotted tenure. The first Democratic impeachment effort of December 2017 fizzled. The second...