Bannon's appointment to the council's principals committee was announced in late January, and it came as the roles of the director of national intelligence and the chairman of the joint chiefs of staff were reduced.
According to The Hill, Bannon's removal from the committee accompanies the roles of those two committee members being restored.
Bannon's views clash with those of National Security Advisor, Lt. Gen. H. R. McMaster. McMaster, who replaced retired General Michael Flynn after he resigned in the wake of controversy, has publicly advocated for a tolerant view of Muslims. Bannon, meanwhile, has openly advocated for an aggressive stance against what he describes as "Islamic fascism."
As the news broke on Wednesday, Bannon told the Wall Street Journal he was being removed from the council not as the result of any conflicts, but because he had accomplished his mission of "de-operationalizing" the National Security Council.