Go independent, and caucus with the Rs.
If it forces one of the RINOs to caucus with the D’s, we know who to primary.
“Go independent, and caucus with the Rs.”
It wouldn’t be unheard of to do that.
In 2020, two blue collar Dem state senators from the Iron Range (in northeast Minnesota) announced they were leaving the Dem caucus and becoming Independents. They were both Trump supporters and their constituencies voted for Trump as well.
They don’t caucus with the GOP state senate but vote with them on a number of matters - including organizing the Senate.
I like your thinking.