ERIE, Pa. (AP) — Pennsylvania Senate candidate John Fetterman is acknowledging he is lucky to be alive as he officially returns to the campaign trail. He’s been sidelined for more than 90 days after suffering a stroke that threatened the Democrat’s life and political strength in one of the nation’s premier Senate contests. Fetterman spoke Friday for nearly 11 minutes, haltingly at times, as he addressed several hundred voters packed inside an Erie convention center. The 52-year-old lieutenant governor says: “Tonight for me, it’s about being grateful — just grateful. Three months ago my life could have ended.” Republican opponent Dr. Mehmet Oz has railed against Fetterman’s prolonged absence throughout the summer.