Republicans, you cannot count on the Democrats to stop Trump. I believe that Hillary Clinton will win the Democratic nomination, and I intend to vote for her, but it is also the case that she is a candidate with significant weaknesses, as your party knows quite well. The result of a head-to-head contest between Clinton and Trump would be unpredictable. Trump has to be blocked in your primary.
Jeb Bush has done the right thing by dropping out, just as he did the right thing by being the first, alongside Rand Paul, to challenge Trump. The time has come, John Kasich and Ben Carson, to leave the race as well. You both express a powerful commitment to the good of your country and to its founding ideals. If you care about the future of this republic, it is time to endorse Marco Rubio. Kasich, there’s a little wind in your sails, but it’s not enough. Your country is calling you. Do the right thing.
Ted Cruz is, I believe, pulling votes away from Trump, and for that reason is useful in the race. But, Mr. Cruz, you are drawing too close to Trump’s politics. You too should change course.
Democrats, your leading candidate is too weak to count on as a firewall. She might be able to pull off a general election victory against Trump, but then again she might not. Too much is uncertain this year. You, too, need to help the Republicans beat Trump; this is no moment for standing by passively. If your deadline for changing your party affiliation has not yet come, re-register and vote for Rubio, even if, like me, you cannot stomach his opposition to marriage equality. I too would prefer Kasich as the Republican nominee, but pursuing that goal will only make it more likely that Trump takes the nomination. The republic cannot afford that.
