Separation of powers and independent oversight

The American constitutional architecture distributes power across three branches and supports them with a layer of independent oversight — inspectors general, the Government Accountability Office, the Office of Special Counsel, congressional committees, the courts. The branches are designed to be in productive friction with one another; the watchdogs exist because power has always tended to consolidate, and someone independent has to be watching.

This ideal is upheld when each branch performs its role and the watchdog institutions can do their work without political interference. It is eroded by executive actions that exceed constitutional or statutory authority, substantive lawmaking by executive order where Congress is the proper actor, refusals to comply with lawful subpoenas, the use of the Justice Department to target opponents or shield allies, firings of inspectors general to obstruct ongoing oversight, defunding of watchdog agencies, obstruction of active OIG inquiries, retaliation against whistleblowers, attacks on judicial independence, and knowing false statements to congressional bodies. The pattern of concern is not any one of these actions in isolation but their accumulation: checks fail because someone is dismantling them, not because they were never there.

Further reading: National Constitution Center Interactive Constitution — Article I, Article II, Article III. Government Accountability Office — non-partisan oversight reports.