Final answer:
A pocket veto occurs when the president takes no action on a bill during the ten-day period after it is presented and Congress has adjourned, preventing any congressional override.
Step-by-step explanation:
When Congress adjourns during a ten-day period after presenting the president with a bill, and the president takes no action, it is known as a "pocket veto". This uniquely passive veto comes into effect only when Congress is not in session, and a bill that has been presented to the president is not signed within ten days.
When Congress adjourns during a ten-day period after presenting the president with a bill, and the president takes no action, it is known as a pocket veto. This occurs when the president refuses to sign a bill and Congress adjourns before the ten days are up. As a result, the bill does not become law.
Unlike a regular veto, which Congress can override with a two-thirds majority vote in both houses, a pocket veto cannot be overridden since Congress is adjourned and thus cannot respond. This legislative maneuver is part of the checks and balances outlined in the Constitution to manage the passage of laws.