Notable
It doesn't have to be "signed". US didn't sign.
Probblem is the pact overrides human rights (see article 29.3 of the Universal Declaration of Human Rights).
JUDGES will use this to force the government to block the wall and to forbid all criticism of the human right to migration.
It will have to go to the Supreme Court.
The UN will find US in violation of human rights.
Let that sink in.