<a href="https://en.wikipedia.org/wiki/1800_United_States_presidential_election" id="mwPA" rel="mw:WikiLink" title="1800 United States presidential election">United States presidential election</a>: The Electoral College casts votes for president and vice president that result in a tie between <a href="https://en.wikipedia.org/wiki/Thomas_Jefferson" id="mwPQ" rel="mw:WikiLink" title="Thomas Jefferson">Thomas Jefferson</a> and <a href="https://en.wikipedia.org/wiki/Aaron_Burr" id="mwPg" rel="mw:WikiLink" title="Aaron Burr">Aaron Burr</a>.