The change is expected to further reduce the agency's influence, transforming it from a powerful policymaking body into a small organization focused more on implementing the president's agenda than on shaping it.

President Donald Trump is ordering a massive overhaul of the National Security Council that will shrink its size and return many career appointees back to their home agencies.

The dismissals, part of plan to radically downsize the National Security Council, follow President Donald Trump’s recent ouster of his national security adviser.