I agree with you on the line item veto.
This one is based on the final action of congress and likely the SCOTUS would find it constitutional.
That is not correct. The constitution calls for a bill to be presented to the prez for signature or veto - or no action:
Every bill which shall have passed the House of Representatives and the Senate, shall, before it become a law, be presented to the President of the United States; if he approve he shall sign it, but if not he shall return it
There is nothing there about line-item vetoes. It would take an Amendment to create this process.
Exactly .. it's all in the wording and the procedures
Like the abortion Bills .. if Congress would put in the "health of the mother" .. then the SCOTUS wouldn't knock down so many Abortion Bills