This is not a big surprise, first, they know that they won’t find work with Republicans, and second, they know that if they don’t quit, they won’t ever work for a Democratic Congressman again:

In a sternly worded statement, Griffith Chief of Staff Sharon Wheeler announced the exit of herself, along with legislative director Megan Swearingen, senior legislative assistant Brian Greer, legislative assistant Will Crain, press secretary Sean Magers, legislative correspondent Arinze Ifekauche, legislative correspondent Chase Chesser, staff assistant Mary Lou Hughston, congressional fellows Anjali Shah Kastorf and Leslee Oden and intern Andrew Menefee.

Griffith’s political consulting team has already parted ways with him since he announced over the holiday break that he would switch parties.

(emphasis mine)

The intern quit? The intern?

Dude, when your intern felt compelled to quit, you just got yourself seriously dissed.