Final answer:
The House of Representatives decided the election, and Thomas Jefferson was declared the winner.
Step-by-step explanation:
The resolution and winner of the Election of 1800 was that the House of Representatives decided the election, and Thomas Jefferson was declared the winner. The tie in the Electoral College led to a contingent election where each state delegation in the House of Representatives had one vote. After multiple rounds of voting, Jefferson emerged as the winner, defeating the incumbent president John Adams.
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