Comment: What will happen if Trump kills NAFTA like Bush killed ABM in 2002 or Carter did years earlier?

" Goldwater v. Carter, 
Congress challenged the constitutionality of then-president Jimmy Carter's unilateral termination of a defense treaty. The case went before the Supreme Court and was never heard; a majority of six Justices ruled that the case should be dismissed without hearing an oral argument, holding that "The issue at hand ... was essentially a political question and could not be reviewed by the court, as Congress had not issued a formal opposition"  

"the courts also declined to interfere when President George W. Bush unilaterally withdrew the United States from the ABM Treaty in 2002, six months after giving the required notice of intent."

Will Congress 'issue formal opposition'?