Sen. Elissa Slotkin (D-Mich.), a swing-state Democrat who won her seat in 2024 and is sometimes floated as a potential 2028 contender, has called for “significant new leadership” across the Democratic Party and, when pressed, made clear she was including the party’s two top congressional leaders. The remarks, made during a June 24 appearance on SiriusXM’s “Straight Shooter with Stephen A.,” hosted by Stephen A. Smith, drew a sharp response by the weekend from House Minority Leader Hakeem Jeffries (D-N.Y.) and the Congressional Black Caucus, the latest clash in the party’s post-2024 argument over who should lead it into the midterms and beyond....