United Nations Ambassador Nikki Haley and Energy Secretary Rick Perry are slated to join the National Security Council’s (NSC) principals committee as part of its latest reshuffling.

Haley and Perry will now be "regular attendees" of the committee's meetings, according to a memorandum published Wednesday in the Federal Register.

Haley’s addition to the committee comes the same day the U.N. envoy condemned Tuesday’s chemical weapons attack in Syria, which the U.S. has blamed on Syrian President Bashar Assad's regime.

The memorandum also solidifies Perry's position as an adviser to Trump on national security issues, as he oversees a vast national security complex in his role as Energy secretary.

The two were among those added following White House chief strategist Stephen Bannon's removal from the committee, a move heralded by Democrats.

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National security adviser H.R. McMaster made the decision to remove Bannon, a request President Trump approved. McMaster was tapped to lead the NSC following the ouster of national security adviser Michael Flynn in February.

The decision to add Bannon in a January reorganization of the NSC was met with ire from Democrats and some national security experts, who argued that his involvement could politicize the NSC.

The director of national intelligence and the chairman of the Joint Chiefs of Staff have also been reinstated as regular attendees, while the CIA director has been added to the committee.

Under a 2009 presidential policy directive when former President Obama took office, the director of national intelligence and the chairman of the Joint Chiefs were listed as “regular members." But Trump's January reshuffling order said the director and the chairman would attend meetings only "where issues pertaining to their responsibilities and expertise are to be discussed."