The 'Outnumbered' co-host explained her predictions for the 2024 Democratic primary as Biden's approval rating continues to slide. #FoxNews ... KAYLEIGH MCENANY: Yeah, because President Trump oversaw the most successful economy in modern history. Compare that to Biden, who, there's the infamous CNN headline, yeah, you heard me right, CNN. Biden's economic approval numbers are worse than Carter's. And if this stays, look, there's a chance he could right the ship. I don't hold out much hope, but there's a chance he could be in a stronger position... 2024 is three years away, but if he's not a stronger position, you are going to see a primary challenger, and the question is, is it the Marianne Williamson Nina Turner who really have no shot? Or is it a serious primary challenger like Elizabeth Warren? Because if that's the case, no president has won reelection if they've had a serious primary contender. That has kind of been a bellwether. So we will see. ...