The presidential race is on, with Senator Arnold Vinick as the Republican frontrunner and Matthew Santos vying for the hotly contested Democratic presidential nomination.
This season chronicles the transition between the administration of President Bartlet and the race for the new presidency between Congressman Santos and Senator Vinick.
Follow the drama when the government is temporarily passed from a Democratic administration to the Republican Speaker of the House, as President Bartlet copes with the kidnapping of his youngest daughter Zoey.