The Party of Lincoln had a good run. Then came Mr. Trump.

The Editorial Board of the New York Times:

Senator John Cornyn of Texas, locked in his own tight re-election race, recently told the local media that he, too, has disagreed with Mr. Trump on numerous issues, including deficit spending, trade policy and his raiding of the defense budget. Mr. Cornyn said he opted to keep his opposition private rather than get into a public tiff with Mr. Trump “because, as I’ve observed, those usually don’t end too well.”

Profiles in courage these are not.

Mr. Trump’s corrosive influence on his party would fill a book. It hasin factfilled several, as well as a slew of articles, social media posts and op-eds, written by conservatives both heartbroken and incensed over what has become of their party.

But many of these disillusioned Republicans also acknowledge that their team has been descending into white grievance, revanchism and know-nothing populism for decades. Mr. Trump just greased the slide. “He is the logical conclusion of what the Republican Party has become in the last 50 or so years,” the longtime party strategist Stuart Stevens asserts in his new book, “It Was All a Lie.

More here.