It's been years so I'm pretty fuzzy on the details, but I remember the Bush 2 administration scrapping the Agreed Framework, spouting off some tough talk, then eventually settling for a re-branded version of the same deal.
They also criticized the nuclear "freeze" so they had to find another word when they went back to that policy IIRC.
Basically I'm saying I hope this is comically empty bluster, rather than a step towards some horrific mistake.