While the Federalist and Republican parties were feuding and struggling for control of the growing country of America in 1800, the balance of power was beginning to tip. The two leading candidates for control were Federalist John Adams, who was at the time of the election of 1800 the president, and Republican and self proclaimed "champion of democracy" Thomas Jefferson. For both sides in the election, the outcome would be a major factor in which party would retain control of the government. The election was ugly and many of the supporters of both candidates resorted to tactics that were less than desirable but ultimately had no effect, such as the scandal about Thomas Jefferson's romantic affair with a slave on his plantation. Thomas Jefferson eventually won the election, and the balance of power in the government was shifted from federalist control over to the now powerful Republican Party.
This election is correctly described in history as "the revolution of 1800". A revolution is when something is completely changed or a balance of power is shifted by force. At the time of the election of 1800 the Federalist Party was in control of the majority of the power in the government. By the end of the election, and the inauguration of Thomas Jefferson as president, the power had been taken from the Federalist Party and the republicans had gained majority. Conflicts that had existed up until this point were temporarily put aside since now there was nothing to create a conflict, since the power was now in the hands of the republicans. So for all intents and purposes, it could be said a revolution took place during the election of 1800, because from that point on the face of American government would never be the same.
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The case of Marbury vs. Madison was brought about by the struggle for power in the government, and the republicans attempting to sabotage the judiciary act of 1801.