The framers spent more time on how to choose the President than on almost any other question at the Constitutional Convention. They rejected election by Congress, which would make the President beholden to the legislature, and direct national election, which smaller and slaveholding states opposed and which seemed impractical in a large country with slow communications. The compromise was a body of electors chosen as each state legislature directs.
This guide follows the process from how electoral votes are allocated to the final count in Congress, explains what happens in a deadlock or dispute, and lays out the arguments for and against the system.
Close results can turn the process into a legal and political fight. In 1876, Congress created a special commission to resolve disputed returns from three Southern states and Oregon. In 2000, the Supreme Court ended the Florida recount in Bush v. Gore, settling the election. In Trump v. Anderson in 2024, the Court held that states cannot disqualify federal candidates under Section 3 of the Fourteenth Amendment without action by Congress.
After the November election, each governor issues a certificate naming the state's electors. In mid-December the electors meet in their state capitals and cast their votes, which are sent to Congress. On January 6, the House and Senate meet in joint session, with the Vice President presiding, to open and count the certificates. After the events of January 6, 2021, the Electoral Count Reform Act of 2022 made clear that the Vice President cannot reject electors and raised the threshold for an objection to one fifth of each chamber. The new President takes office at noon on January 20.
Because electors are awarded state by state, campaigns focus on a few closely divided swing states, and a candidate can win while losing the popular vote, as in 1824, 1876, 1888, 2000, and 2016. Supporters say the system protects federalism and smaller states, requires broad geographic support, and contains disputes within single states. Critics say it gives some voters more weight than others and ignores most of the country. Abolishing it would take a constitutional amendment, so some states have joined the National Popular Vote Interstate Compact, which would take effect only when states with 270 electoral votes join.
The Constitution lets each state legislature decide how to appoint electors. Early on, many legislatures chose electors themselves, but by the 1830s nearly every state used a popular vote. Today each party nominates a slate of electors in each state, and voters who cast a ballot for a presidential ticket are really choosing that slate. State election officials run the vote and certify the results. In Chiafalo v. Washington in 2020, the Supreme Court held that states may bind electors to vote for the candidate who won their state.
Article II gives each state as many electors as it has senators and representatives, so electoral votes shift with every census and reapportionment. The Twelfth Amendment, ratified in 1804 after the tie of 1800, requires separate electoral votes for President and Vice President, and the Twenty-third Amendment, ratified in 1961, gives the District of Columbia three electors. No member of Congress or federal officer may serve as an elector. Alexander Hamilton defended the design in Federalist No. 68.
If no candidate has a majority, the House chooses the President from the top three, with each state delegation casting one vote and 26 needed to win. The Senate chooses the Vice President from the top two, with each senator voting. The House decided the elections of 1800, in early 1801, and 1824, in early 1825, and the Senate chose the Vice President in 1837. The Twentieth Amendment and the Presidential Succession Act cover what happens if no one has qualified by Inauguration Day.
See the full campaign calendar in the presidential election, start to finish, learn how the parties pick nominees in how primaries and caucuses work, or follow congressional races in midterm elections explained.