Left-wing filmmaker Michael Moore was more than disappointed with Hillary Clinton’s selection of Sen. Tim Kaine (D-VA) as her running mate, predicting Kaine would not excite the liberal base to go to the polls.

He contrasted Clinton’s pick with Indiana Governor Pence, Donald Trump’s running mate, who Moore predicted would excite the GOP base.

Trump also took to Twitter to point out that the centrist Kaine, whose selection reportedly allowed Wall Street executives to breathe sighs of relief, represents the “opposite of what Bernie stands for.”

“Bernie fought for nothing,” Trump Tweeted.

Many progressive activists and Sanders’s supporters like Moore believed that Clinton’s selection of the centrist Kaine was a sign that she was taking their votes for granted. Perhaps aware of Kaine’s liabilities, Clinton introduced Kaine at Saturday’s rally in Miami as a “progressive who gets things done.”