Confirmation allows senators to examine competence, integrity, experience, conflicts of interest, and views relevant to the office. Committees may hold hearings and gather records before the full Senate acts. Those information-gathering steps support the formal decision but are not themselves confirmation. A nominee who testifies at a hearing has not yet received the Senate's consent. Likewise, Senate rejection prevents that nominee from obtaining the appointment through the ordinary process but does not bar the president from submitting a different nominee.

The Constitution treats inferior officers differently. Congress may by law vest their appointment in the president alone, in the courts of law, or in department heads. The classification matters because a person performing substantial federal duties cannot simply be labeled an ordinary employee to avoid the Appointments Clause. Vacancy devices, acting service, and recess appointments raise additional rules, but they do not erase the basic principal-officer sequence of presidential nomination and Senate consent. The constitutional text does not impose the treaty requirement of a two-thirds Senate vote on appointments; treaty consent and appointment consent are separate procedures.

Confirmation is both shared power and a check. It helps create a lawful appointment while preventing the president from unilaterally staffing every senior office and judgeship. After confirmation, however, the Senate does not become the officer's routine supervisor. Executive officers generally administer law within the executive branch, and Article III judges gain independence through tenure during good behavior and salary protection. On an exam, distinguish entry into office from later control, removal, or impeachment.

Video lesson: Separation of Powers and Checks and Balances: Crash Course Government and Politics #3