Grantham's Knowledge of White House Cover Up
Near the end of the movie when Gray Grantham calls Cole at the White House and FBI Director Denton Voyles he says he "HAS information that the White House tried to obstruct justice and intervened into the FBI's investigation of Victor Mattiece".
Did he really have that "obstruction of justice" information IN ADVANCE, and if so, when in the movie was it obtained? If not, did he just say it to call their bluff?