Manchin, Sinema, Tester, they are doing what it takes to win re-election and represent their constituents. None of these three come from ultra liberal places. 2 of them come from heavy Republican states and 1 from a typically Republican state. If you're mad about how the Senate is working so far, look no further than the general election. Republicans absolutely shattered expectations, flipping numerous house seats, holding on to multiple senate seats that were practically declared for the Democrats prior to election night, up and down the board it was a fantastic night for republicans, especially on the state legislature level. The Georgia runoffs went the other way cause Trump caused hundreds of thousands of republican voters to not want to vote because they thought the system was rigged, otherwise this would be a 52-48 split in favor or Republicans (based on the initial voter turnout in November before the runoff), and that would include the 3 moderate dems.
Progressives will never get what they want in this country unless they can get 60+ democratic senators out of 100, and the last time that happened was 1977-1979, when Democrats were a lot more moderate and therefore appealing to independents. Even if they get to 60 it will require more Manchin-like moderates to get them to that number and they would be very unlikely to vote for anything AOC wants.
