In what could be the first part of a long-rumored purge, White House Communications Director Mike Dubke resigned from his position today, citing “personal” reasons.

“The reasons for my departure are personal, but it has been my great honor to serve President Trump and this administration,” Dubke wrote in a message to friends and associates. “It has also been my distinct pleasure to work side-by-side, day-by-day with the staff of the communications and press departments.”

“This White House is filled with some of the finest and hardest working men and women in the American Government,” added Dubke, whose comments were shared by Fox News.

Dubke founded and ran a Republican media firm based in Alexandria, VA, before accepting the position as communications director. He filled a role that was left empty by Jason Miller, a Trump spokesman who stepped down the day before the inauguration, also citing family responsibilities.

For weeks now, rumors have swirled of an impending staff shakeup at the Trump administration. First the name making the rounds was Steve Bannon, who reportedly clashed with the president’s son-in-law, Jared Kushner; then chief of staff Reince Preibus, who with Bannon left the president’s international trip early.

White House counselor Kellyanne Conway downplayed the staff shakeup rumors in the context of Dubke’s resignation, saying, “There’s been a story a minute about that.”

“It’s easier to cover that than I guess learning the finer points about healthcare reform, tax reform, infrastructure, ISIS in retreat,” said Conway.

Buck will weigh in on the impact of Dubke’s resignation on tonight’s show; tune in!