Donald Trump doesn't want Mark Zuckerberg to forget about their long-running beef.

Writing on his social media platform Truth Social on Tuesday, the former president said "election fraudsters" would be imprisoned if he gets elected in November. The post name-checked the Meta CEO.

"They have no shame! All I can say is that if I'm elected President, we will pursue Election Fraudsters at levels never seen before, and they will be sent to prison for long periods of time," Trump said.

"We already know who you are. DON'T DO IT! ZUCKERBUCKS, be careful!" he added.