If the President vetoes a bill, he sends it back to the House or Senate. If the House and Senate still think that the bill should become a law, both houses have to take a vote again. And if two thirds of both the House and Senate vote "Yea" or Yes, then they "Override" the President's veto and the bill becomes a law.
If the president wants to reject a bill that has been passed and sent to him and Congress is still in session, he must send it back to Congress with his reasons for rejecting it ( known as vetoing the bill). Congress then has the option of passing it again with a 2/3 majority in both houses (known as overriding the veto) in which case it becomes law without the President's approval. Or Congress can pass a new version of the bill which seems to remove at least some of the objections and see if the President will accept it. Or, they can just give up on the bill for the time being.
However, there is a special case. The President must have 10 days in which to consider the bill. If Congress adjourns before the President has had the required 10 days and does not sign it, it dies and does not become law and the President does not have to say why he did not sign it. Note that if the President does have the required 10 days but fails to sign the bill, it becomes law without his signature after the 10 days are up.
The U.S. Constitution, Article I, Section 7, Clause 2 states in part,
"Every Bill which shall have passed the House of Representatives and the Senate, shall, before it become a law, be presented to the President of the United States: If he approve he shall sign it, but if not he shall return it, with his Objections to that House in which it shall have originated, who shall enter the Objections at large on their Journal, and proceed to reconsider it."
It's known as a veto, although the word veto does not appear in the Constitution.
A veto is used when the President rejects a bill.
If you mean a veto that is when the president rejects a bill.
Presidential veto novanet
Presidential veto novanet
The bill is then taken back to congress and a veto is determined.
When the president rejects a bill by leaving it on his desk until after Congress has ended session, it is called a pocket veto.
Veto, Pocket Veto, and if the Senate or House rejects.
a president simply rejects it officially or the congress overrules it by a majority vote
if the president vetos (or refuses to sign a bill) 2/3 of the senate can over ride it.
If the president does not agree with a bill he/she can return it.
I'm pretty sure that's a veto
He doesn't do anything really. The bill goes back to congress and they vote on it again. If they receive a 2/3 majority vote, they can override the president's veto. He must then sign the bill into law.