"...Seldom, if ever, have Americans been exposed to a candidate so willing to descend to the depths of bigotry and intolerance as Mr. Trump. That he would make Tuesday’s comment amid sinking poll numbers and a wave of Republican defections suggests that when bathed in the adulation of a crowd, Mr. Trump is unable to control himself.
Just eight years ago, Senator John McCain of Arizona, then the Republican presidential nominee, told a man at a town hall session who said he was “scared” of an Obama presidency that Mr. Obama “is a decent person and a person that you do not have to be scared as president of the United States.”
Twenty minutes later, a woman told Mr. McCain that she couldn’t trust Mr. Obama because “he’s an Arab.” “No ma’am,” Mr. McCain replied. “He’s a decent family man, a citizen, that I just happen to have disagreements with on fundamental issues. And that’s what this campaign is all about.”
Republicans would do well to summon the integrity that Mr. McCain showed in 2008, and not just to give some sense of decency to this ugly campaign. The time has come for Republicans — including Mr. McCain — to repudiate Mr. Trump once and for all."