(iii) Proposed provisions specifying that the USPS shall not transmit mail-in or absentee ballots from any individual unless those individuals have been enrolled on a State-specific list described in subsection (b)(iv) of this section with the USPS pursuant to this subsection.


Re-writing the constitution (e.g., amendments) also takes approval from the states themselves.
According to … the constitution
There’s some circular logic happening which Trump sees through. Much like SCOTUS, the constitution can’t enforce itself. So you can just bully it.
There have been cases before where the States threatened to delcare the Constitution null and void due to a pending violation. Contrary to what people think, the States have quite a bit of leeway to deal with things. So far, they have been trying to deal with things legally.
True. I guess he can interpret it however he wants and trust that the supremely court will back him.
I saw he will be the first president sitting in on arguments to the supremely court. I wonder if this is an attempt to intimidate justices that might go against him.