became states and both sent two Democratic senators.
2015-2017 was a 54-46 Republican majority, they still would have controlled 54-50 and been able to block Garland.
2017-2019 was 52-48 Republican majority, that would be 52-52 with Pence breaking the tie. Maybe Democrats could have forced Garland through in early January during their brief majority, but it wouldnt be assured.
2019-2021 Republicans currently have a 53-47 majority that would be reduced to 53-51.
Just pointing out that adding states would certainly help our position in the Senate, but it is not a panacea.
Especially in the case of DC.
Support for DC statehood is very low.
Republicans just do what they want. GOP attacks the ACA. Mitch blocks Garland. Mitch blocks 100+ federal judges for 4+ years. They not just Mitch but many other senators reverse themselves today and will confirm justice handmaid. They do what they can today to secure power. They worry about the future in the future. Who knows what the future holds. Who know what voters care about in 4 years, 8 years, 24 years. Once a territory becomes a state it can't be undone (at least not without consent of the state and even that is dubious constitutionally). Sure maybe if Democrats do it then it becomes the singular issue in 2024 or maybe just maybe other more important things come up that nobody gives a shit about it four years later.
If you are given a decisive majority and don't use because you are afraid of the future, don't worry when the Republicans inevitably are given one they ABSOLUTELY will use it to their benefit.