What action can Congress take regarding proposed legislation?

Congress has the authority to override presidential vetoes, which is a critical check on executive power. When the President does not agree with a piece of legislation passed by Congress, they can veto it, preventing it from becoming law. However, Congress can counteract this by voting to override the veto. This requires a two-thirds majority vote in both the House of Representatives and the Senate. The ability to override a veto illustrates the balance of power between the legislative and executive branches, ensuring that Congress can assert its legislative authority even against Presidential opposition.

The other options do not accurately reflect Congress's powers. Disapproving of Supreme Court decisions is not a power held by Congress, as that authority lies primarily with the judiciary. While Congress has the power to create laws, it cannot enforce federal laws directly; that responsibility falls to the executive branch. Lastly, Congress does not appoint the President; the President is elected by the Electoral College, although Congress does have a role in the confirmation of certain executive appointments.