John Oliver is trying to figure out how President Donald Trump’s staff came up with the widely criticized budget proposal released last week.

He found a hint: Office of Budget and Management director Mick Mulvaney gave an interview where he said they wrote the budget by reading Trump’s speeches and interviews.

“We took those words, those policies, and turned them into numbers,” Mulvaney said on “CBS This Morning.”

“Yeah, basically Mulvaney treated Trump’s past statements the way Trump treats women,” Oliver said on Sunday’s broadcast of “Last Week Tonight.” “Randomly singling out a few of them, and then reducing them down to numbers.”

But as Oliver noted, “translating the noises that come out of Trump’s face into hard policy prescriptions is almost impossible.”

Impossible, yet Oliver tried to do it anyway. He played a series of Trump statements, then attempted to turn them into budget items.

Eventually, he gave up.

“I don’t speak fluent toddler psychopath,” Oliver said.

Check out the full segment above.