Holding: Legislative does not have standing to challenge the constitutionality
of the Line Veto, they lacked personal stake. Why: (1) Although Congress
explicitly provided that members of Congress “affected by [this Act] could bring
an action, which should do away with any “prudential standing limitations”,
Congress CANNOT erase Art III standing requirements. (2) Cannot litigate an
“institutional injury”. Loss of political body-Art III.