Donald Trump may be overwhelmingly popular with his MAGA base, but according to columnist Heather Digby Parton, their support doesn’t suggest the near-invincibility the media claims it does. “He must expand his coalition and he’s not getting that done,” the Salon writer argued in her Monday column. “In every state so far, he has underperformed expectations.” Parton also argues that Trump has been abandoned by moderates and right-leaning independents. Want more breaking political news? Click for the latest headlines at Raw Story. “The ongoing shedding of college educated and suburban voters has…