None.
He'd be under arrest within 5 minutes should he try.
I don’t think he’s going to try it, but if he did, who would arrest him?
He’s violated or ignored the law numerous times already and there hasn’t been more than a peep or two here and there - but no serious resistance.
People have what is called a “normalcy bias,” meaning that they are inclined to accept any situation as just being a slight deviation from the standard, but still within the range of normal,because it’s unthinkable that this wouldn’t be the case. This makes people tolerate abnormal things until it’s way to late to react.
Under arrest by whose authority? He has committed multiple unconstitutional, high crimes and misdemeanors - there he sits . . . nobody'd do a damn thing