Another top Kamala Harris staffer quits amid rumors of unhealthy work environment

A third top aide to Vice President Kamala Harris is leaving amid accusations of an unhealthy work environment where the Veep allegedly is a "bully." 

Vincent Evans quit his job as Harris' deputy director of public engagement and intergovernmental affairs to become Executive Director of the Congressional Black Caucus on Wednesday.

The seemingly downward move from the White House to Capitol Hill raised eyebrows, but a source familiar with the departure told CNBC Evans "is leaving on great terms."

Evans is the third most recent top staffer to leave Harris' office in recent months. In November, the VP's communications director Ashley Etienne quit, followed by Harris' spokeswoman Symone Sanders in December.

A Washington Post story published shortly after Sanders' departure was announced described Harris as a "particularly difficult" boss. 

"It’s clear that you’re not working with somebody who is willing to do the prep and the work," one former staffer told The Post. "With Kamala you have to put up with a constant amount of soul-destroying criticism and also her own lack of confidence. So you’re constantly sort of propping up a bully and it’s not really clear why."

Rumors of a dysfunctional Veep office first surfaced over the summer. 

"People are thrown under the bus from the very top, there are short fuses and it’s an abusive environment," an anonymous source told Politico. "It’s not a healthy environment and people often feel mistreated. It’s not a place where people feel supported but a place where people feel treated like s---."

Evans commented on Twitter about his move to the caucus, but he did not mention why he left the Vice President. "I am deeply honored to be named the Executive Director of the Congressional Black Caucus," he wrote. "As we write the next chapter of the CBC story, I am excited for the opportunity to lend my experience and passion for supporting the collective vision of this storied Caucus. Onward."

He told CNBC that he started his career in Washington working for a caucus member so he knows "firsthand the tremendous leadership and impact this caucus has in Congress and across the country."