Futurama (1999)

S2E7 A Head in the Polls

As the cost of titanium soars, Bender decides to pawn his titanium-heavy body and enjoys a lavish lifestyle as merely a head. However, chaos ensues when Richard M. Nixon's head-in-a-jar seizes control of Bender's body to campaign for the presidency of Earth. Determined to reclaim what’s rightfully his, Bender sets out on a mission to retrieve his stolen body.