It isn’t a matter of occasional asides, or indiscreet slips of the tongue uttered at unguarded moments. Trump is always eager to tell people that they don’t belong here, whether it’s Mexicans, Muslims, transgender people or another group. His message is, “You are not one of us,” the opposite of “e pluribus unum.” And when he has the opportunity to unite Americans, to inspire us, to call out the most hateful among us, the KKK and the neo-Nazis, he refuses.

To my fellow Republicans: We cannot allow Donald Trump to redefine the Republican Party. That is what he is doing, as long as we give the impression by our silence that his words are our words and his actions are our actions. We cannot allow that impression to go unchallenged.