The following four years would be the only time that the president and vice-president were from different parties ( John Quincy Adams and John C. Calhoun would later be elected president and vice-president as political opponents, but they were both Democratic-Republican party candidates; Andrew Johnson , Abraham Lincoln 's second vice-president, was a Democrat, but Lincoln ran on a combined National Union Party ticket in 1864, not as a strict Republican). Jefferson would leverage his position as vice-president to attack President Adams's policies, and this would help him reach the White House in the following election.
This was a complex decision. In the specific matter before the Court, the decision limited judicial power. However, the more fundamental issue that it decided was to insist on the court's authority to declare an act of Congress void if found to be in conflict with the Constitution. As Marshall explained, "it is emphatically the province and duty of the judicial department to say what the law is." Since Marbury v. Madison the Supreme Court has been the final decision maker regarding the Constitutionality of Congressional legislation.