Third: If the Republican primary contest in, say, New Hampshire, really is a binary choice between Walsh and Trump, then there is no ideological reason for Republicans who say they care about immigration and conservative policies and the Supreme Court above all not to vote for Walsh over Trump.

If Republicans choose Trump over Walsh, the only rational explanation is that they’re voting for Trump’s character. The bug that they tried desperately to bury three years ago has become the defining feature of the product.

In other words: You don’t choose Trump over Walsh in spite of “send her back” and all the rest. You choose Trump over Walsh because of it.

And if that’s what Republican voters do, it will be clarifying. Is it helpful? Perhaps not, in terms of the long-run future of the Republican party or the conservative movement.