Donald Trump s latest conspiracy theory has caught the attention of the White House .

The former president shared a cartoonishly unfounded prediction Tuesday on his Truth Social platform that President Joe Biden might crash the upcoming Democratic National Convention and reclaim the partys support for a presidential nominee from Vice President Kamala Harris .

Biden formally endorsed Harris only a few weeks ago, and Harris has since lined up the support needed to secure the Democratic Party s nomination.

White House press secretary Karine Jean-Pierre was asked about Trumps rant during Wednesdays briefing.

The former president has made this suggestion that the current president may still want to be the Democratic presidential nominee, put that out on social media, said Gray TV White House correspondent Jon Decker . Does the president ?

Jean-Pierres involuntary response said it all as she audibly chortled at the idea.

I see your reaction, thats why I wanted to ask you this: Does the president in any way lament his decision to drop out of the race? Decker continued.

The president is proud of his decision. Hes proud of his decision, Jean-Pierre replied.

Biden exited after a series of public missteps sowed doubt in his ability to defeat Trump at the ballot box a second time. He not only performed disastrously in his presidential debate with Trump in June, but had a number of verbal gaffes at key events in the weeks after .