I wouldn’t say they’re necessarily tiny but they are a minority by far. 94/213 of the Democrats in the House are part of the progressive caucus for instance, which is 94/435 total seats in the House. Having 1/100 of the seats in the Senate by comparison.

Imo they just do what they can get away with. Which will continue for the foreseeable next three years at minimum.

For progressive change, it really needs to happen at the state level within Blue states. We need those programs passed at the state level and then we can sell how successful they are to the other states.