republican leadership to put a vote on that. reporter: republican arizona senator jeff flake wants his colleagues to inoculate robert mueller from presidential interference. flake needed the blessing of all 100 senators to protect mueller. the senate majority leader mitch mcconnell blocked flake. flake he ll try again on wednesday. better luck this time? i know they ve been trying to get the votes for it. we ll see. reporter: mcconnell isn t a concerned about mueller s future. he doubt the president will fire the special counsel. this is good this i this is a solution in search of a problem. [indiscernible] i probably would. reporter: flake won t back president trump s judicial nominees unless mueller bill gets a vote.