[staplers]

The national guard exists for this purpose (state level) but is mostly captured by federal interests.

Local PD's could in effect do something similar but have shown to back the authoritarian-aligned party.

Propaganda has aligned nearly every single level of law enforcement to authoritarianism. I can't see a scenario where this is undone.

[bee_rider]

Some states also have a “state defense force” which is explicitly under the control of the state. But they tend to be pretty small I think, and lots of them are inactive or purely ceremonial.