Properly, states are the judges of their own elections for presidential electors. Congress is the ultimate arbiter in case of disputes, abuse of power, corruption, or so on. Now the GOP is arrayed against federalism and in favor of using all power that is available to them.
Republicans, including Reps. Chip Roy and Thomas Massie and Sen. Mike Lee, who object to the Trump-Hawley-Cruz play, will be, no doubt, excoriated as fake conservatives, swamp-dwellers, and RINOs. This is a perverse litmus test.
A Republican Party based on the idea that power should be wielded whenever possible and that Congress ought to override the states whenever Congress disagrees, is not in any way a conservative party.
The Republican Party became a cult of personality by the time Trump won the presidency. Now we’re seeing crystal clear the costs of that transition.