Former President Donald Trump ramped up his attacks on independent presidential candidate Robert F. Kennedy, Jr., going after his stances on guns and energy while also saying his skepticism of vaccines is “fake.”

“You think he’s an anti-vaxxer, he’s not really an anti-vaxxer. That’s only his political moment. He said the other night he’s okay with a vaccine,” Trump said in a May 9 Truth Social post. “RFK’s views on vaccines are fake, as is everything else about his candidacy. He is not a Republican, so don’t think you’re going to vote for him and feel good. He is a rabid-left Democrat. Let the Democrats have RFK Jr. They deserve him.”