What allows the President to check the power of Congress?

The ability of the President to veto bills serves as a crucial check on the power of Congress. When Congress passes legislation, the President has the authority to reject that legislation, which can prevent laws that may be deemed harmful or unwise from being enacted. This power ensures a balance between the legislative and executive branches, as Congress must consider the President's stance when crafting laws.

For instance, if a bill is passed by both Houses of Congress, the President can veto it, meaning that the bill does not become law unless Congress can override the veto with a two-thirds majority in both Houses. This provides a mechanism for the President to influence legislative decisions, fostering a system of checks and balances that is fundamental to the U.S. government.

Other powers, like declaring war, appointing justices, or negotiating treaties, while significant, do not directly serve to check Congress's legislative power in the same manner as the veto. These powers play various roles in governance but are not specifically designed to counteract Congressional authority on legislation.