Carville is livid, calling them names in interviews. Yet they are going to be on the ballot in some states regardless of his temper tantrums. That is most likely bad news for Xiden or any other 'Crat that runs. No Labels is one of the parties that like RFK II*. 

* RFK - Though he often calls himself RFK Jr., his name should actually revert to RFK II. See, upon the death of the principle the junior is dropped for a number so people know if he is the second, third etc. in the family line.