Answer:
Jefferson's election in 1800 was considered a "republican revolution" because he reversed Federalist policies.
Explanation:
The presidential election of 1800 was the fourth presidential election in the country. It was held between October 31 to December 3, 1800. It is sometimes referred to as the "Republican Revolution". Vice President Thomas Jefferson defeated President John Adams. This result led to the decline of the Federalist Party.
The election exposed one of the flaws of the original version of the United States Constitution. The members of the Electoral College only voted in the president; each voter could vote for two candidates, and the vice president would be the second person. The Democratic-Republican Party drafted a plan in which one voter would refrain from casting his second ballot in Aaron Burr, causing Jefferson to have one more vote than Burr. The plan, however, went wrong, causing a tie between Jefferson and Burr. The election was then placed in the hands of the House of Representatives, controlled by the Federalist Party. Most of the Federalists voted for Burr to have Jefferson elected not president and the result was a week of impasse. Federalist Alexander Hamilton, who detested both but still preferred Jefferson to Burr, intervened in favor of Jefferson, which allowed him to ascend to the presidency.
Hamilton's actions were one of the causes of the duel with Burr, which resulted in Hamilton's death in 1804.
As a result of this, the 12th Amendment, ratified in 1804, was added, stipulating that electoral voters have to make a distinct choice between president and vice president.