Republican presidential candidate Sen. Ted Cruz’s campaign has shot back at Donald Trump’s latest attacks, saying the media mogul should check himself into Twitter rehab.

“Reality has hit the reality star,” said Cruz’s Communications Director Rick Tyler. “Since Iowa, no one is talking about Donald Trump. That’s why he’s popping off Twitter.”

“There are Twitter addiction therapy groups, and he should check in with his local chapter,” Tyler added.

Since getting the second place spot in Iowa, Trump has taken to Twitter claiming that Cruz stole the Iowa caucus by spreading false rumors that Ben Carson was dropping out of the race.

Here are just a few of his tweets:

Bernie is contesting #IA results. Maybe Donald should go back to IA & join the Ds. Bet they’d love #TrumpCare https://t.co/uTdU9Uv9sL — Ted Cruz (@tedcruz) February 3, 2016

The State of Iowa should disqualify Ted Cruz from the most recent election on the basis that he cheated- a total fraud! — Donald J. Trump (@realDonaldTrump) February 3, 2016

This was sent out from Ted Cruz- as Iowans arrived at their caucus sites to vote. #CruzFraud pic.twitter.com/tRM7KUCrSU — Donald J. Trump (@realDonaldTrump) February 3, 2016

Based on the fraud committed by Senator Ted Cruz during the Iowa Caucus, either a new election should take place or Cruz results nullified. — Donald J. Trump (@realDonaldTrump) February 3, 2016