But Hannity, Bannon and King are about to learn the same lesson that Jeb Bush, Marco Rubio, Ted Cruz, Hillary Clinton, Jeff Zucker, Mika Brzezinski and I discovered in 2016: With Trump, it is never over. His base will stick with him no matter what — no matter how loudly and how often the other self-styled leaders of that base take to Twitter or talk radio or any other platform to bleat that Trump has betrayed them.

Coulter’s and Hannity’s abandonment of Team Trump — if it really comes to that — won’t impact the trajectory of this presidency. If Trump’s political career is ever brought to an abrupt end, it won’t be because a few right-wing carnival barkers found themselves unable to pressure the president into adopting a policy position — expulsion of the dreamers — that is supported by only 12 percent of Americans.

Since his inauguration, Trump has chained himself to these characters deep inside an ideological cave where two-thirds of the American electorate never venture.