Who vetoes bills?

The President has the authority to veto bills passed by Congress, which consists of the Senate and the House of Representatives. When a bill is presented to the President, they can either sign it into law or reject it through a veto. This power is a critical part of the checks and balances system in the U.S. government, allowing the President to prevent legislation that they may consider unwise or harmful from becoming law.

The other choices do not hold the power to veto legislation. The Senate and the House of Representatives are involved in the legislative process and can propose, debate, and vote on bills, but they do not have the authority to veto them. The Chief Justice, while a significant figure in the judicial branch, does not play a role in the legislative process or have the ability to veto bills. This distinction reinforces the President's unique role in the legislative process compared to other governmental entities.