Which of the following occurred in the presidential election of 1800?

Thomas Jefferson was elected president and John Adams became vice president.
Thomas Jefferson was elected president and John Adams became vice president.

The House of Representatives had to decide the election.
The House of Representatives had to decide the election.

The Supreme Court ruled the election results were unconstitutional.
The Supreme Court ruled the election results were unconstitutional.

John Adams was elected president and Thomas Jefferson became vice president.

Incorrect.

In the presidential election of 1800, the following occurred:

1. Thomas Jefferson was elected president and John Adams became vice president.
2. The House of Representatives had to decide the election.
3. John Adams was elected president and Thomas Jefferson became vice president.

However, the statement "The Supreme Court ruled the election results were unconstitutional" is incorrect. The Supreme Court was not involved in this decision.

The correct answer is: The House of Representatives had to decide the election.

In the presidential election of 1800, Thomas Jefferson was indeed elected president and John Adams became vice president. However, the unique aspect of this election was that it required intervention from the House of Representatives to decide the outcome.

During the Electoral College voting, both Thomas Jefferson and his running mate Aaron Burr received the same number of electoral votes, resulting in a tie. According to the Constitution at that time, in case of a tie, the House of Representatives had to step in to break it.

The House of Representatives held numerous votes, but none of them resulted in a clear winner due to political divisions and party loyalties. Ultimately, it was not until the 36th ballot that Thomas Jefferson was finally elected president, with Burr graciously conceding to him. This event highlighted the need for later constitutional amendments, leading to the adoption of the 12th Amendment in 1804 to prevent such tie-breaking issues in future elections.

To find the correct answer, it was necessary to analyze the options and consider the historical context of the 1800 presidential election, specifically the involvement of the House of Representatives in determining the outcome.