Dan Bilzerian, a social-media influencer best known for posting videos of himself, shirtless, with scantily clad women on yachts, says he will challenge Florida Congressman Randy Fine. Bilzerian, 45, of Las Vegas, Nevada, is a Tampa-born trust-fund celebrity, “the King of Instagram,” professional poker player, and entrepreneur with a messy business background whose criticism of Jews and Israel has brought allegations of antisemitism. “Yes, I’m running,” Bilzerian told The News-Journal in an April 1 text message. “Getting everything in order now.” He said he would be “happy” to talk about the race “as soon as I’m officially registered which should...