As everyone but Josh causes Santos to question his choice of Leo as his running mate, Bartlet's investigation into the dangerous press leak continues. Also C.J. gets interviewed by Babish and Donna approaches Josh for a job.

Santos and Vinick have to deal with press fallout when it looks like the Bartlet White House is not going to continue the investigation into the press leaks.

Donna is back and she's working for the Santos/McGarry campaign, but not for Josh. An attack ad on Santos by a pro-life group puts Vinick in a corner when Santos demands Vinick renounce it but Vinick knows that if he does it will offend the G.O.P. leadership.

All eyes are looking forward to the Leo McGarry/Ray Sullivan Vice Presidential debate. Meawhile, Santos is trying not to catch his children's cold and he visits his home in Texas and continues to campaign. Jorge Santos, the Congressman's brother, may cause some problems at a gathering.

After the near-nuclear disaster at the power plant the polls show surprising, or maybe not so surprising, results for both candidates. The Vinick camp gears up for backlash while the Santos camp hopes for cause to celebrate. Meanwhile Bartlet is still trying to keep the situation in Central Asia under control. Relationships in the Santos campaign, the Vinick campaign, and the West Wing all undergo changes and Vinick and Bartlet attempt to deal with different versions of the cold.

There are only two weeks left before Election Day and both candidates must make difficult choices at a time when they are both extremely tired. Vinick meets a famous athlete who greets him with a welcome that sings possible campaign trouble. Santos doesn't have such trouble with the athlete. Both candidates are campaigning in California with the hopes of stealing the election from the other guy in the hopes of thereby winning the election. Santos' briefcase falls into the hands of the Vinick campaign.

The Santos campaign meets up with Rock the Vote and lots of musicians are around for a star-studded episode. Helen gives a lecture to MANA (a National Latina Organization, formerly Mexican American National Association) but her heritage doesn't help her when trying to deliver part of the Santos campaign message. Toby is being pressured by the Attorney General, Blake, to reveal his source and it's affecting his relationship with his kids. He tries a little psychological warfare of his own to get Blake to back down. Toby is also giving Josh campaign advice which includes plans to increase courtship of the Latino vote. Elsewhere on the campaign trail, it's Halloween and Toby's kids and Santos' kids are dressing up for the occasion.

Election Day finally arrives, and between analyzing exit polls, and mulling over news reports, a few Santos staff members discover the joys of campaign romance. Meanwhile, C.J. ponders life after the White House; and Annabeth makes a tragic discovery.

Former series regulars, including Marlee Matlin, Mary-Louise Parker, Tim Matheson, Anna Deavere Smith and Gary Cole, make guest appearances as Bartlet, Santos and their staff members attend a funeral for one of their own. Also, Josh cautions Santos about getting involved in the vote for Speaker of the House.

Former cast member Rob Lowe returns as a senior political official in this episode, which finds Bartlet and his staff making the transition as easy as possible for the president-elect, who discovers some unpleasant realities about his new job. Meanwhile, a stressed-out Josh realizes that he may need to take some time off after he reaches his breaking point.