A supervisory special agent who is now under scrutiny after being removed from Robert Mueller’s Special Counsel’s Office for alleged bias against President Trump also oversaw the bureau’s interviews of embattled former National Security advisor Michael Flynn, this reporter has learned. Flynn recently pled guilty to one-count of lying to the FBI last week. FBI agent Peter Strzok was one of two FBI agents who interviewed Flynn, which took place on Jan. 24, at the White House, said several sources. The other FBI special agent, who interviewed Flynn, is described by sources as a field supervisor in the “Russian Squad,...