Audio problem: When Rogue is riding in Wolverine's truck and he gives her the beef jerky, you can hear her lips smacking as she eats, but she is actually chewing with her mouth closed. (00:16:10)
Audio problem: After Rogue was stabbed through the chest by Logan, she is sitting on the bench outside. Bobby/Mystique walks up to her from behind. Rogue says "Bobby" but her lips say "Hi". (00:42:25)
Audio problem: Just before Cyclops shoots his beam which breaks the toad-slime off of Jean Grays face, he says "Don't move," however HIS MOUTH doesn't move. (01:12:30)
Chosen answer: You are working under the assumption that Mystique would not believe this either. However, with Magneto in prison and no sign of the senator she could happily take on his identity. Also, even if Kelly was alive, after she gave a press statement backing mutants, it would be unlikely that a politician would change his mind so suddenly again and he would therefore not come clean that it was not him.
Scrappy