Nominating Donald Trump will wreck the Republican Party as we know it. Not nominating Trump will wreck the Republican Party as we know it. The sooner everyone recognizes this fact, the better. Denial has been Trump's greatest ally. Republicans and commentators didn't believe he would run. They didn't believe he could be an attractive candidate to rational people, no matter how angry with "the establishment" voters said they were. They -- which includes me -- were wrong. The denial lasted longer for some than others. Long after many observers had come to the realization that Trump was the front-runner, Jeb...