Former New Jersey Governor Chris Christie took a swipe at Trump after being called a “RINO” for supporting Georgia Gov. Brian Kemp’s re-election instead of Trump-backed candidate David Perdue.

According to The Hill:

“Insightful commentary about three Republican Governors who were overwhelmingly re-elected by their people from a former President who lost to Joe Biden. Maybe the ‘R’ in RINO really stands for re-elected,” Christie tweeted on Wednesday.

His tweet came after Trump called Arizona Gov. Doug Ducey (R), Nebraska Gov. Pete Ricketts (R) and Christie “RINOs,” meaning “Republicans in name only,” for campaigning alongside Kemp ahead of his May 24 primary election.

“Today, the worst ‘election integrity’ Governor in the country, Brian Kemp, loaded the great state of Georgia up with RINOs,” Trump said in a statement.

“That’s right, he had them all. Chris Christie, Doug Ducey from Arizona, and Pete Ricketts from Nebraska. That tells you all you need to know about what you are getting in Georgia – just a continuation of bad elections and a real RINO if you vote for Brian Kemp,” he added.

Despite Trump’s endorsement of Perdue, most polls have projected Kemp as the favorite to win the nomination.