A senior official told NBC News on Tuesday that
"In a private meeting with the President on Thursday, May 18 I tendered my resignation as Assistant to the President for Communications. I offered to remain in the position through the President's international trip and he accepted,"
"The reasons for my departure are personal, but it has been my great honor to serve President Trump and this administration. 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 if filled with some of the finest and hardest working men and women in American government."
In an interview on Fox News on Tuesday, White House adviser Kelly Conway said
Media reports have speculated about a coming shakeup at the White House in part because of the investigation of Russia's alleged meddling in the 2016 election.
—The Associated Press contributed to this report.