Bernie Sanders contradicted New York Rep. Alexandria Ocasio-Cortez, describing his Medicare for All bill as a concession from what a single-payer healthcare system could be.

“I love Rep. Alexandria Ocasio-Cortez. She has done more in her first year in Congress to transform politics, to get young people involved, than any freshman member of Congress that I can remember,” the Vermont senator, 78, said during a CNN town hall.