A democratic administration would be extremely unlikely to do that, I think. Democrats are usually middle–of–the–road, don't–upset–anyone types. Radical centrists, if you will. That's why the elections of people like Mamdani are so shocking.
What baffles me is how conservatives supporting the current government overreach aren't worried about the coming backlash. Do they think they'll just win all the future elections? Even when there is no more Trump?
There's a degree of that. But really it's learned behavior; MAGA literally sacked the Capitol in a violent insurrection and Democrats managed to botch the response to that. The only reason we're talking about future malfeasance is because Democrats didn't punish past malfeasance, thereby shifting the Overton window. And of course this goes back further than Jan 6 -- Trump might actually get a pardon from the next Democratic president if history repeats.
Let's say the administration require physical in-person voting due to supposedly mail-in vote fraud and similar in past elections, like when Trump lost.
Then they place a bunch of ICE agents outside of each voting location, checking any immigrants and others they've declared unwanted that are about to vote. Suddenly a lot of democratic voters no longer feel safe voting.
Will the democrats still win?