Former Secretary of State John Kerry mocked President Trump on Friday night, saying he has the “insecurity of a teenage girl.”

Kerry opened his appearance on HBO’s “Real Time with Bill Maher” by hitting Trump’s frequent use of social media and touting former Trump campaign chairman Paul Manafort’s plea deal with the special counsel’s office on Friday. 

“He really is the rare combination of an 8-year-old boy — he’s got the immaturity of an 8-year-old boy with the insecurity of a teenage girl,” he said. The remarks were a push back against President Trump’s tweets the night before:

“John Kerry had illegal meetings with the very hostile Iranian Regime, which can only serve to undercut our great work to the detriment of the American people. He told them to wait out the Trump Administration! Was he registered under the Foreign Agents Registration Act? BAD!”

Read more at The Hill.