Presidents are elected indirectly by electoral college.
The election of president and vice president of the United States is an indirect election in which citizens of the United States who are registered to vote in one of the 50 U.S. states or in Washington, D.C. cast ballots not directly for the candidates, but instead for members of the U.S. Electoral College, called electors. These electors cast direct votes, known as electoral votes, for president, and for vice president.
I think you would need to tell both leaders to explain their problems then let the other world leaders put their mouths in.
All of them are necessary
Article V of the Constitution provides two ways to propose amendments to the document. Amendments may be proposed either by the Congress, through a joint resolution passed by a two-thirds vote, or by a convention called by Congress in response to applications from two-thirds of the state legislatures.
A two-thirds vote in both houses of the U.S. Congress. Ratified by three-fourths of the state legislatures.
A two-thirds vote in both houses of U.S. Congress. ...
A national constitutional convention called by two-thirds of the state legislatures.
Nixon when to China in 1970s to normalize relations and met with Zhou Enlai