As rival factions inside the White House continue to battle over urgent foreign policy decisions, a key ally of Donald Trump’s chief strategist Stephen Bannon is leaving the National Security Council, BuzzFeed News has learned.

Tera Dahl, deputy chief of staff at the NSC and a former columnist for Breitbart, is being reassigned to a position outside of the White House, three people familiar with the decision told BuzzFeed News. The move frees up National Security Adviser H.R. McMaster to install another staffer of his choosing in his drive to reshape the NSC to his liking…

Though Dahl’s role was largely administrative in nature, the delicate balance of power between the White House’s nationalists — led by Bannon and senior adviser Stephen Miller — and so-called “globalists” — led by McMaster and National Economic Council Director Gary Cohn — has heightened the sensitivity surrounding personnel moves.