Only one problem! The Democrats will vote to end the filibuster. Then they only need a simple majority.. They won’t have to worry about losing the Senate they will vote to make Washington DC a State and Puerto Rico a state which will give them 4 vote majority...Also because the Republicans didn’t challenge the voter fraud. The Democrats know they can get away with it now and now Republican will win in any battleground state again!!
You need a constitutional amendment to make DC a state. Not going to happen.