What is an example of how Congress can check the power of the president?

The ability of Congress to investigate the executive branch is a significant check on presidential power. Through its oversight functions, Congress has the authority to conduct hearings, gather evidence, and examine the actions of the executive branch. This investigatory power serves several key purposes: it helps ensure accountability, provides a mechanism for transparency, and allows Congress to assess whether executive actions comply with laws and the Constitution.

This oversight capability is vital in maintaining the balance of power among the branches of government. When Congress investigates the executive branch, it can uncover wrongdoing, implement reforms, and hold those in power accountable for their actions, thus preserving democratic governance and the rule of law.

The other options do not accurately reflect how Congress checks presidential power. The nomination of appointees to the federal judiciary is primarily a presidential power, with Congress playing a role in confirmation. Supreme Court decisions cannot be directly overridden by Congress, and while Congress can propose amendments, this process involves both chambers and ultimately requires state ratification. Lastly, ruling on the constitutionality of laws is a function reserved for the judiciary, not Congress.