Justice Breyer agreed that the plaintiffs had standing, but he viewed the Line Item Veto Act as a constitutional exercise of Congress’s power to delegate implementation authority. The Act did not literally repeal or amend statutes; instead, it created, as part of the law enacted through bicameralism and presentment, a conditional presidential power to prevent specified provisions from taking effect.
In his view, the majority treated the word “cancel” as dispositive while overlooking the Act’s structure. Congress itself enacted the conditions under which a spending item or limited tax benefit would have legal effect, and the President acted within those congressionally enacted conditions. The lockbox feature also meant that a cancellation did not simply restore the legal status quo as if the item had never been enacted.
Justice Breyer maintained that the relevant limit was the nondelegation doctrine, not the Presentment Clause. The Act supplied an intelligible principle: the President had to consider statutory purposes and legislative history and determine that a cancellation would reduce the deficit, not impair essential government functions, and not harm the national interest. Those standards were at least as definite as broad delegations the Court had previously upheld.
The delegation did not improperly aggrandize the President or strip Congress of its essential authority. Congress defined which provisions could be canceled, could exempt future provisions from the Act, and could enact a disapproval bill restoring a cancellation. The Act was a limited budgetary experiment designed to address the practical difficulty of giving the President meaningful choices within massive modern appropriations measures.
Although delegating authority over limited tax benefits raised additional concerns, Justice Breyer concluded that those benefits were narrow, revenue-losing departures from general tax policy and functioned like a specialized form of spending. He would uphold both the spending and tax-benefit cancellation provisions.