Hasn’t the line-item veto been ruled unconstitutional?
When was that ever an obstacle to him?
Yes, it has been ruled unconstitutional. Mark Levin and his group looked into this extensively and concluded that that was a correct decision.
This is grandstanding.
Yup. The repubs passed it into law once and it was struck down by SCOTUS.
"Hasnt the line-item veto been ruled unconstitutional?"
McCain hasn't let a little thing like that bother him in the past.
To do what they want to do will require a constitutional amendment. But that's just too damn hard...
McCain has ceased to be useful as a Senator, as well as a Republican.
It wasn't the line-item veto that was ruled unconstitutional, it was the way the line-item veto that was passed was written that was determined invalid -- Congress wrote it so that after a president signed legislation into law, he would then line out specific items, violating the separation of powers. The tool has to be written so that a president will line out items BEFORE he then signs the legislation into law.