Clinton is looking out of the window and he notices that someone has urinated the message, "BILL SUCKS!" on a wall outside the White House.
Furious, he orders the FBI to take urine and handwriting samples from every member of the White House staff and find the culprit immediately.
A week later, the FBI director calls. "Mr. President, I have good news and bad news," he says. "The good news is that the urine belongs to Bob Dole."
"And the bad news?" Clinton demands.
After a slight pause, the director replies, "Sir, the handwriting belongs to your wife!"