Steve Bannon, the controversial senior counselor to President Trump,

Steve Bannon, the controversial senior counselor to President Trump, was removed from his role with the National Security Council, according to a senior administration official. Bannon had been given the authority to participate in National Security Council Principals Committee meetings after Trump signed an executive memorandum in January. At the time, some experts called the move an "unprecedented" political appointment to the panel. 
The appointment in January raised fears that the gathering of US intelligence chiefs could become politicized. The former Breitbart News executive had no objections, a source familiar with the decision told ABC News. "He was there to babysit [former National Security Adviser Michael] Flynn, to watch him as he 'de-operationalized' the NSC from [Obama-era National Security Adviser Susan] Rice," the source said. "Mission done." Flynn was forced to resign from his position in February after he admitted to misleading Trump administration officials on the nature of multiple phone calls with the Russian ambassador to the United States prior to Trump's inauguration. The NSC is the main group advising the president on national security and foreign affairs.

Source: QNA