The resolution would have to go through the Senate Rules Committee. It would also require 60 votes to pass on the Senate floor. No Senate Republicans have come out and said explicitly that they would support such a move.But this is just because that's how they want to do it, or how they can get Sinema on board. They can change the rules with a majority - as McConnell did in 2017 which was the NUCLEAR OPTION but then somehow suddenly longstanding Senate tradition.
And then again in 2019...