Which is why he probably won't try a line item veto. In the tradition of Slick Willy, it depends on what "waive" means. Maybe he has another bizarre scheme I haven't thought of in mind.
Somebody posted that Fox News used the word "waive" but it was not in the posted article. I don't even know the exact source.
He will probably just ignore the part of the law he doesn't like.
He breaks the law at will and never gets challenged or called on it in a serious way.