In the wake of Donald Trump’s Tuesday debate performance that some Republicans called a “missed opportunity” and a “trainwreck,” former Trump White House correspondent Brian Karem suggested the ex-president is in for the fight of his life — and that is not good news for the GOP. Noting Vice President Kamala Harris’ baiting prompted him to rage about immigrants eating America’s pets, Karem said that now-viral soundbite makes Trump an even more “damaged” candidate. As he wrote in his column for Salon, Republicans now find themselves in the same position Democrats did after President Joe Biden’s …