Bernie Sanders appeared on The Late Show with Stephen Colbert Wednesday night to a cheering, feel-the-Bern fans, but not without getting grilled by the TV host, who challenged the Vermont senator on how he plans to deliver radical change to a polarized country.

Colbert asked Sanders about the perception that he was simply riding a wave of angry populism among voters, a kind of Donald Trump with different hair. "Yes, people have a right to be angry," Sanders admitted. "But what we need to be is rational in figuring out how we address the problems, and not simply scapegoating minorities," he said, referring to Trump's controversial call to ban all Muslim immigration.