The President and his staff prepare the State of the Union Address, but the President becomes ill. His naval doctor examines him in the living quarters. Mrs. Bartlet, a physician, orders various medical tests. She later reveals to Leo--and only Leo--that President Bartlet suffers from Multiple Sclerosis (MS). Later Bartlet further explains to Leo that his type of MS is called relapsing-remitting, and he experiences total recovery after attacks that are induced by fever and stress. Mandy informs C.J. that news of Leo's addiction will be made public. Leo conducts a press conference revealing his stay in the rehabilitation facility for alcohol and Valium addiction. Danny and C.J. kiss.