JOSH KRAUSHAAR: Reality Check for 2020 Democrats. “This week offered more evidence that moderation is the key for the party to win back the blue-wall states that Trump carried in 2016.”

The main lesson of the 2018 midterms was that Democrats won back the House by nominating pragmatic candidates reflective of the centrist districts that they represent. Less publicized is the fact that many progressive candidates struggled to win swing states and districts despite the favorable environment.

This week offered even more empirical evidence of the importance of moderation. House Speaker Nancy Pelosi gets it, but her party’s leading presidential voices are playing right into Trump’s political playbook.

The Progressives can’t help themselves — because it isn’t Trump’s playbook; it’s their own.