Republican nominee Donald Trump is still going after Paul Ryan.

Before a campaign event in the House Speaker’s home state of Wisconsin, Trump suggests Ryan doesn’t understand what it takes to win. “Well, I don’t want to be knocking Paul Ryan. I think he could be more supportive to the Republican nominee,” Trump said in an interview with ABC News reporter Tom Llamas.

When asked whether he thinks Ryan wants him to win, Trump was uncertain.

“Well, maybe not, because maybe he wants to run in four years or maybe he doesn’t know how to win,” Trump said. “Maybe just doesn’t know how to win.”

During the rally in Green Bay, a crowd of Trump supporters shouted “Paul Ryan sucks.”

“I’m in his territory and they are all screaming for Trump,” Trump said.