And Congress includes the combination of House of Representatives and the Senate. So are you saying the President can indeed use the insurrection act here to refuse usage of the ballots from those states?
Trump's legal team really needs to dig into this as it potentially offers the equivalent of W closing the skies on 911. Can POTUS or SCOTUS act based on the language of the amendment alone? I don't know. Supremacy clause implies those in violation should not be serving. Normally I'd expect some kind of due process for such major effects. But Due Process has its roots in the Bill of Rights and this arguably amends that... Yet the politics of applying it would be much cleaner through following pre-existing, albeit mostly forgotten, Congressional enabling scaffolding.