Breitbart News has a target in its crosshairs following the departure of former National Security Adviser Mike Flynn from the White House in a cascade of scandal over his contacts with the Russian government: White House Chief of Staff Reince Priebus.

Targeting Priebus, who leads the faction of Trump aides that is composed of experienced establishment political hands, is really just a stand-in for a larger conflict about the future of Trumpism in the White House. Breitbart News is treating Flynn’s ouster as the first salvo in a war against those in the administration they deem insufficiently loyal to Trump. Backing up Breitbart are legions of other Trump loyalists in the right-wing media sphere. And their angry reaction to Flynn’s exit signals the unpopularity of the move with a vocal segment of Trump’s base.

Trump loyalists — meaning the true believers who supported Trump from the start, not Republican politicos who became attached later on — have been privately musing about getting rid of Priebus.