Donald J. Trump’s victory is not as much an endorsement of Mr. Trump as it is a rebuke to professional Republicans in D.C., writes Peggy Noonan in the WSJ.

… almost every conservative and Republican in Washington—in politics, think tanks and journalism—backed a candidate other than Mr. Trump. Every one of those candidates lost, and Mr. Trump won. After November, think tanks and journals will begin holding symposia in which smart people explain How We Lost The Base.

Those who oppose Mr. Trump should do it seriously and with respect for his supporters. If he is not conservative, make your case and explain what conservatism is. No one at this point needs your snotty potshots or your supposedly withering one-liners. I confess I have lost patience with many of those declaring they cannot in good conscience support him, not because reasons of conscience are not crucial—they are, and if they apply they should be declared. But some making these declarations managed in good conscience, indeed with the highest degree of self-regard, to back the immigration proposals of George W. Bush that contributed so much to the crisis that produced Mr. Trump. They invented Sarah Palin. They managed to support the global attitudes and structures that left the working class jobless. They dreamed up the Iraq war.