CNN host John King unloaded on Rep. Devin Nunes after watching him dodge a question about his association with a former Ukrainian prosecutor by accusing the network of “criminal activity.”

King explained Monday that Nunes has threatened to sue several media outlets, including CNN, over reports that Rudy Giuliani’s now-arrested associate Lev Parnas is willing to tell Congress that the California Republican had traveled to Vienna to get dirt from a Ukrainian official about Joe Biden on the taxpayer’s dime. Nunes denied any wrongdoing but has made it clear he’s outraged by the reports.