Reich’s overt leftist bias aside, his analysis is all wrong. Trump is no more a champion of the tea party than any of several other GOP presidential candidates, including most notably Ted Cruz, Rick Perry, Cary Fiorina or Rand Paul. Likewise, Bernie Sanders isn’t popular because of the occupy movement, which has been long moribund, and he certainly isn’t a political outsider, having served in Congress for almost 25 years (since 1991).
Trump and Sanders are popular for different reasons. Trump appeals to the conservative base of the GOP because he is willing to talk tough and defy a stifling and overwhelming atmosphere of political correctness. Sanders appeals to the progressive base of the Democrats because he is willing to overtly and unapologetically push a progressive/Socialist agenda. Sanders has also gained attention simply because so many Democrats are looking for an alternative to scandal-plagued Hillary Clinton.