if congress wants to pass a law that is not supported by the president, what can they do?

If Congress wants to pass a law that is not supported by the President, they can still do so by overriding the President's veto. After a bill passes both the House of Representatives and the Senate, it is presented to the President who may sign it into law or veto it by returning it unsigned with objections. If the President vetoes the bill, Congress can reconsider it, and if two- thirds of both the House and the Senate vote to override the veto, the bill becomes law without the President's approval. This override requires a significant majority, reflecting broad support in Congress, and is a key check on the President's power. If the President neither signs nor vetoes the bill within 10 days while Congress is in session, the bill automatically becomes law. However, if Congress adjourns within those 10 days and the President does not sign the bill, it does not become law, a scenario known as a "pocket veto".