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>> “So Congress can waive laws now?” <<
With the presidents signature.
Congress can REPEAL laws, with the President’s signature.
Not sure they can AMEND laws once signed, and I’m fairly sure they can’t WAIVE laws either.
As I said, if the waiver provision is written into the law, that’s cool. If it isn’t, this is going to be in the courts for years.
George Marshall got a waiver, but that was in 1950. There was no opposition in Congress, in 1950, to things that were good for America.
I hate to break it to you, but that is no longer the case.