The Onion: White House Denies Existence of Karl Rove

"To my knowledge, no one by the name of Karl Rove works for this president, his staff, or for that matter, anyone on earth, since he is not a real person," White House press secretary Scott McClellan told reporters Monday.
Despite White House denials, allegations have surfaced in recent weeks that Karl Rove is the man who leaked covert CIA operative Valerie Plame's identity to the press. He is rumored to be President Bush's senior advisor, chief political strategist, architect of the president's 2000 and 2004 election victories, and the current deputy White House chief of staff, as well as a frequent guest on televised political talk shows.
"None of these allegations are supported by the facts," McClellan said. "The opponents of this administration have created a mythical figure in order to discredit the president. All they have done is divert attention from the important work at hand—the war in Iraq and the war on terror. In doing so, they have dishonored the sacrifices of our brave men and women in uniform."