At no point during Musk's speech at the Oct. 5 Trump rally did he make a multibillion-dollar pledge. The claim originated on a satirical website.

The group chat — which is normally filled with memes — became fixated on Musk and his involvement with Trump’s campaign.

After Trump introduced Musk to the stage, the tech mogul enthusiastically jumped in the air several times while supporters cheered. Musk, who wore a black Make America Great Again cap, warned in his speech that "this will be the last election" if the former president does not win in November while urging people to vote.