Line item veto presents real constitutional separation of powers issues.
"Line item veto presents real constitutional separation of powers issues."
I don't think so. The President has the right to veto an entire bill and that's not considered a problem with separation of powers so I don't see how being able to veto a portion of a bill would be considered a violation of separation of powers. The vast majority of governors have line-item veto and I never heard anybody complain about them having it.