CNN data expert astounded by stunning collapse of Democrat: 'No doubt' he'll be primaried

CNN's Harry Enten zeroed in on a Democratic senator who will "no doubt" face a primary challenge, and history suggests he will likely lose.

Sen. John Fetterman (D-PA) has seen a stunning reversal in his support from his own party's voters since he was first elected to the U.S. Senate in 2023, and Enten told "CNN News Central" that he has never seen an elected official lose backing so dramatically.

"I would just say that John Fetterman is doing as well with Pennsylvania Democrats as...