Mealey's (August 5, 2016, 2:25 PM EDT) -- NEW YORK — The plaintiff in the final bellwether trial in the General Motors ignition switch multidistrict litigation says in an Aug. 2 brief that the automaker should not be able to present expert testimony from a doctor who claims that she was under the influence of drugs when she crashed her car (In Re: General Motors LLC Ignition Switch Litigation, No. 1:14-md-02543, Amy Ladon Norville v. General Motors LLC, No. 14-cv-8176 S.D. N.Y.)....