Who has the authority to veto laws or bills?

The President has the authority to veto laws or bills as part of the checks and balances system established by the U.S. Constitution. When Congress passes a bill, it is sent to the President, who can either sign it into law or refuse to sign it, thereby exercising a veto. This power is significant because it allows the President to reject legislation that they believe is not in the best interest of the country or does not align with their policies. If the President vetoes a bill, Congress can still enact it by a two-thirds majority vote in both the House of Representatives and the Senate to override the veto. This mechanism ensures that no single branch of government can dominate the lawmaking process, maintaining a balance of power.