The Electoral College chooses a president and vice president from two different parties – John Adams, a Federalist, becomes president and Thomas Jefferson, a Democratic-Republican, is elected vice president. The two will clash several times during the term. Concerns that an administration made up of candidates with conflicting political philosophies will hamstring the government and the rise of the two-party system that makes such an event more likely lead Congress to reconsider how the president and vice president are selected.