Let's have a little thought experiment, shall we?
Within the first few days of his regime, Trump declares that he is suspending the Constitution for the safety of the nation.
No legislature
No courts
No bureaucracy
No rights
This is immediately challenged, perhaps even by a few GOP in Congress, & it goes through the courts. We get to the Supremes. They opine that while Trump can't *change* the Constitution, he can *suspend* it & reconstitute the government as he sees fit.