Donald Trump tried to sidestep giving a policy position on health care, and walked straight off of a rhetorical cliff.

During the presidential debate Tuesday night, Trump struggled to answer a question about his healthcare plan, accidentally revealing that he didn’t have one at all.

After his particularly lackluster response criticizing Obamacare but giving no alternatives, ABC moderate Linsey Davis asked Trump outright if he knew what he was talking about. “Yes or no, you still do not have a plan?” she said.

“I have concepts of a plan,” Trump replied. “I’m not president right now.”