What happens to a bill that has been passed by congress but devoted by the president

When a bill passes in the House and Senate and is sent to the President for a signature, it is said to be enrolled. ... A pocket veto occurs when the president takes no action and Congress has adjourned its session. In this case, the bill dies and does not become a law.

The President of the United States can veto a bill passed by congress

Explanation:

The president has the power to refuse to approve a bill or joint resolution and prevent it from becoming a law. The President has a 10 day window (excluding Sundays) to sign a bill passed by Congress, usually a veto happens when the president returns the legislation to where it came from explaining the reason for the veto. It be overridden by two thirds vote in the Senate and the House, and the bill becomes a law over the President's opposition. Another thing that can happen is that the president takes no action during the 10 day period, this is called a pocket veto. If the president hasn't signed the bill after the 10 days, it becomes a law, unless Congress adjourns the bill, then it doesn't become a law.