After watching congressional Republicans sell their souls to a crass, intemperate, and divisive pr*sident, suburban voters are jumping the GOP ship. As Republicans licked their wounds Tuesday night in the aftermath of a race where they watched a 20-point Trump advantage in 2016 evaporite into dust, suburban flight from their party started to sink in.

"One Pennsylvania Republican operative called the results in the suburbs, in particular, 'apocalyptic,'" NPR reporter Scott Detrow said on Up First Wednesday morning.

As the website 538 noted, Pennsylvania's 18th congressional district—where Democrat Conor Lamb still narrowly leads Republican Rick Saccone—is both wealthier and more highly educated than the nation on average, making the race a suburban referendum on Trump.

As the numbers show, Lamb won this election not in “Trump country,” but in the Allegheny County suburbs.

The problem for Republicans is that the Allegheny County break with Trump isn't a fluke, it's a pattern. The New York Times writes:

Just as they did outside Birmingham and Montgomery, Ala., in December, and Richmond, Va., and Washington, D.C., in November, energized and angry suburban voters were swamping the Trump stalwarts in the more rural parts of those regions, sending a clear message to Republicans around the country.

Suburban voters were "energized" alright. As NBC notes:

Intensity was highest in the places where support for Trump was lowest: Turnout was at 67 percent of 2016 levels in Allegheny County, where Lamb won, compared to 60 percent in Westmoreland County, where Saccone led handily.

The suburban apocalypse Republicans are facing is really summed up in one word: Trump. He's repulsive to suburban voters overall. And the more GOP candidates model their candidacies after him, the more suburban voters flee. For instance, Trump built his entire campaign on racist anti-immigrant sentiment that turned out to be just as disastrous for Republican Rick Saccone in Pennsylvania Tuesday as it was for GOP gubernatorial candidate Ed Gillespie in Virginia last year.