Facebook / Sebastian GorkaSebastian Gorka, a controversial White House adviser who works on national security issues, is reportedly leaving his role in the White House, according to multiple reports. Citing an unnamed senior administration official, the Washington Examiner reported Sunday that Gorka would leave soon for a new role dealing "with the 'war of ideas' involved in countering radical Islamic extremism." CNN senior White House correspondent Jim Acosta later tweeted that he had confirmed the report.