The laughs were on the love gov on Leno last night.

“How can you be this stupid?” Jay Leno asked Eliot Spitzer on the “Tonight Show,” referring to Spitzer’s romps with hookers.

“Hubris is terminal. People who fall prey to hubris, end up falling themselves,” Spitzer said, quoting from his new book. “And this is something that I think infected me. And the fall from grace is incredibly painful.”