The Congress has to approve any treaty or truce signed by the president, ambassador, or any representative.
probibly
James Monroe was the President when the Adams-Onis Treaty was negotiated and signed.
Adolfo Diaz.
A treaty negotiated by the president must be ratified by the United States Senate. Specifically, it requires a two-thirds majority vote in the Senate for the treaty to be formally ratified. Once ratified, the treaty becomes legally binding under international law. The president may also need to implement the treaty through legislation if it requires changes to domestic law.
2/3 vote of Senate
OBAMA.............. NO JUST KIDDING it was Roosevelt
Carter negotiated the Camp David Accords, a peace treaty between Egypt and Israel at the Presidential Vacation home. Harding signed the treaty ending World War 1 on the golf course, but I don't think he was on vacation.
The senate ratifies treaties with a two third majority.
Nicholas Trist.
he negotiated for the treaty of Paris. He became president. He signed the declaration of independence.
What cabinet agency does most of the work when a treaty is negotiated?Read more: What_cabinet_agency_does_most_of_the_work_when_a_treaty_is_negotiated
All treaties must ratified by the Senate before they take effect.