President Donald Trump on Sunday night fired off a series of messages on social media attacking Senate Democrats, demanding that the Baseball Hall of Fame admit retired pitcher Roger Clemens, and mocking ABC reporter Jonathan Karl’s hair.

And in one of his wilder posts, Trump delivered a not-so-veiled threat to one-time pal Chris Christie, the former New Jersey governor who had criticized him earlier in the day.

“Can anyone believe anything that Sloppy Chris says?” Trump wrote.

During an ABC interview, Christie accused Trump of using the Justice Department as “his personal legal representation” to carry out retribution against political opponents and critics such as former national security advisor John Bolton.

Trump seemed to make Christie’s case for him as he hinted that the former governor could soon find himself on the wrong end of a new investigation into the “Bridgegate” scandal from his time as governor.