What's the American equivalent of withdrawing the whip? Is there one? It's been well over a decade since I've bothered with Congressional procedure, so I've forgotten a lot of the little technicalities. In most countries there would be no need to ask, but Americans are so odd about anything to do with parties and groups.
It’s simply not available as congressional nominees are determined by primaries .
That's a candidate selection issue which is different. I meant expelling or suspending from the caucus, as this would definitely cross the threshold for that literally anywhere else.