Democratic politicians cannot stop anything. A few are doing what they can do, which is provide a megaphone of their constituents' thoughts on how our fascist government is violating all norms, ethics, and laws, in order to do fascism.
The people who ultimately can stop this are citizens. There's quite a few citizens in this country, although a lot of them are more comfortable thinking of themselves as consumers, as that is what business has been grooming citizens to be for decades. The hard part is getting people who can turn their gaze away from the fascism to look at it, acknowledge it, and then organize themselves to stop it.
It's not easy because it's not swipeable, and business has trained us that we're just a swipe away from what we want.
Citizens have to want things to change enough to start working on that change themselves. Relying on some elected politician who is busy making campaign donation phone calls isn't going to work. It never has, we just had a functioning bureaucracy working in the background and elected officials who at least pretended about following the law. Shit doesn't work when the President believes he is the law.
Put down your phones, unless you're recording some fascists doing fascist things. Take a look around. Find some other people who don't like what is happening. Talk to those people, preferably eye-to-eye.
"The only thing necessary for the triumph of evil is for good men to do nothing", etc., etc.