Boehner could never match the rhetorical ferocity of the movement. He was perpetually caught in a trap of overpromising and under-delivering. Republicans never repealed Obamacare, as they derisively called the ACA, and they could not stop then-President Obama’s executive orders on immigration. Boehner resigned in October 2015.

Democrats want and need parallel outside groups to inject money and organization into their grass roots. There are signs it is happening: The thousands of activists who protested at a series of raucous town halls hosted by Republican congressmen over the past week were urged to action in part by sophisticated publicity campaigns run by such professional liberal enterprises as the Indivisible Guide, a blueprint for lobbying Congress written by former congressional staffers, and Planned Parenthood Action.

What is less clear is whether such energy and resources will remain united with Democratic leaders — or will be turned on them, as happened with the tea party and the Republican establishment, if the activist base grows frustrated with the pace of progress.

There have been some signs of liberal disgruntlement toward Democratic leaders. Pelosi and Schumer (D-N.Y.) were jeered by some in a crowd of more than 1,000 that showed up at the Supreme Court two weeks ago to protest Trump’s executive order travel ban. Marchers showed up outside Schumer’s home in Brooklyn, demanding he “filibuster everything” and complaining that he supported Trump’s Cabinet members involved in national security.