Justice White argued that the majority unnecessarily sounded the death knell for legislative vetoes across a vast range of statutes. In his view, the device was an important practical mechanism that allowed Congress to delegate necessary authority to the Executive and agencies while retaining an effective measure of political accountability and legislative control.
He rejected the premise that a one-House disapproval resolution was an exercise of new legislative power. The Attorney General's suspension of deportation did not itself permanently alter Chadha's legal status; under the statute, it was a proposal that became final only if Congress did not disapprove it. Thus, a change from deportable to lawful permanent resident occurred only through the concurrence of the Executive, the House, and the Senate.
Justice White maintained that bicameralism and presentment were satisfied in substance because any one of the three relevant actors could preserve the preexisting deportation order. The Attorney General could decline to recommend suspension, and either chamber could reject the recommendation. The one-House veto therefore did not allow one chamber to make law unilaterally; it merely withheld approval from an executive recommendation within a statutory process enacted through Article I.
He also argued that the Constitution permits Congress to delegate broad rulemaking and policymaking authority to executive and independent agencies without new bicameral passage and presentment for each agency action. It made little sense, in his view, to permit such delegations while forbidding Congress from reserving a statutory check on their exercise.
Finally, Justice White found no separation-of-powers violation in this immigration setting. Control over admission and deportation of aliens lies at the core of Congress's legislative authority, and the statute gave the Attorney General only qualified suspension authority. The veto did not usurp an exclusive executive or judicial function; it preserved Congress's ultimate role in deciding whether deportation would be canceled.