Electoral College (yes I know its same answer as "who elects president?" but it WAS a different question)
The registered voters in all the states and DC elect the president and vice-president albeit in an indirect way.
electoral college
The House of Representatives elects the President, and the Senate elects the Vice President.
In the United States, Vice Presidents are indirectly elected through the Electoral College. This college is composed of electors that select the President and Vice President. Ballots are cast for the electors by voters in each state and the District of Columbia.
Contrary to popular belief, the U.S. Presidents are elected in December. The votes for president and vice president cast by the public in the November election elect members to the electoral college, and it is the electoral college that elects the President.
The electoral college that elects the president also elects the vice president. In the event that a new vice president is appointed because of a vacancy, both houses of Congress have to confirm the president's appointee.
The Vice President would then be elected by the Senate.
The legislative branch elects the president
The electoral college
The Conscience.
The Congress would decide who the Vice-president would be.
14 presidents served as vice president before becoming president