F.B.I. Opened Inquiry Into Whether Trump Was Secretly Working on Behalf of Russia Following President Trump’s firing of James B. Comey as F.B.I. director, the bureau grew increasingly concerned about whether the president’s actions constituted anti-American activity.Credit...Sarah Silbiger/The New York Times WASHINGTON — In the days after President Trump fired James B. Comey as F.B.I. director, la