opponent. trump is really nervous that barnett may win. today he put out statement attacking her. kathy barnett has her own baggage. more tonight. reporter: for months kathy campaigned across pennsylvania drawing attention yet remaining largely an afterthought in the republican senate race. from the outside the race played out as a vicious two man brawl. mammoth has flipped flopped on every single issue. reporter: fueled by big money and big names of tv celebrity dr. david oz.. less than a week before the primary election, barnett s late surge is sending shock waves across the gop and ro provoked s warning for trump. kathy barnett will never be able to win the general election against the radical left. tiepts she gently disagreed. i look forward to working