After a mine disaster causes the price of titanium to skyrocket, Bender hocks his body to cash in on the inflated price. After living it up for some days Bender soon realises the mistake he has made and returns to buy it back only to find it has already been sold.
Bender discovers that it was Richard Nixons head that has purcahsed his body and he is using it run for the presidency of Earth. Richard Nixon is unwilling to sell it back, he claims it has charisma and believes it will give him the support of the robot voters. So with the help of Fry and Leela they steal it back from him