In last season's final episode of The West Wing, President Josiah Bartlet invokes the 25th Amendment and relinquishes power so that the country can be led through crisis -- terrorists have kidnapped Bartlet's daughter -- by someone with an objective grasp of the situation. As it happens, however, the office of vice president is temporarily vacant, the previous occupant having resigned because of a sex scandal two episodes prior. Under such circumstances, the Presidential Succession Act of 1947 dictates that the speaker of the House becomes the acting president, regardless of whether the two leaders are from the same party (on The West Wing they're not).