Reince Priebus, the consummate party loyalist and the Republican National Committee’s longest-serving chairman, will be chief of staff to a president whose candidacy threatened to rip the Republican Party apart—an irony not lost on his University of Miami School of Law classmates.

Priebus, 44, graduated from law school in 1998 and then returned to Wisconsin to launch his political career and join Milwaukee firm Michael Best & Friedrich, where he’s been on leave since becoming RNC chair in 2011. President-elect Donald Trump announced his appointment as chief of staff on Sunday, at the same time he picked controversial Breitbart News executive Stephen Bannon to serve as chief White House strategist.