The Tesla and SpaceX boss was interviewed virtually at Bloomberg's Qatar Economic Forum in Doha.
The advertisement accuses the GOP lawmaker of making up "lies for the limelight."
Democratic super PAC American Bridge alleged Trump is breaking the law for not officially announcing he's running but still spending money on a potential campaign.
The former president's PAC money can't be spent on a 2024 bid, but the flood of small individual donations demonstrates his continuing popularity, according to political scientists.
"It's a bird, it's a plane, it's our #LoserPalooza plane flying over the Trump loser fest," MeidasTouch gloated Saturday night via Twitter.
The former president rejected the idea of setting up a rival third party and indicated his desire to have a sway over the Republican Party.
Last month, Lincoln Project co-founder John Weaver was accused of sexually harassing nearly two dozen young men online for years.
"They're a mark of my service to our country. I'm damn proud of them," M.J. Hegar tweeted.
A new anti-Biden ad from the Committee to Protect the President Super PAC uses audio from Obama's book, 'Dreams From My Father' edited to sound as if it's about the former vice president.
New Jersey Senator Cory Booker admitted on CNN he was "caught off guard" by a Super PAC attack ad targeting South Bend, Indiana Mayor Pete Buttigieg, but said November poll leaders never win the Dem nomination.
Using ads and other means, some Republicans are trying to stop Trump from racking up more delegates ahead of the convention.
Bush's affiliated super PAC, Right to Rise, has raised $118 million, but to little effect
The Democratic presidential frontrunner exploits a legal loophole.