( August 25, 2026, 8:35 AM EDT) -- PHILADELPHIA — The manufacturers of a riding lawnmower that allegedly ignited while parked in a garage were awarded summary judgment by a Pennsylvania federal judge who found that testimony from an expert retained to testify on whether a defect in the lawnmower caused the fire was inadmissible under Federal Rule of Evidence 702 and Daubert v. Merrell Dow Pharmaceuticals Inc....