What famous American was once a king and almost a lion...?

Question

I'm trying to win a radio contest and need help with this riddle. All truly thought out answers are appreciated...

Answer 1

The Man Who Ruled San Francisco

First he lost his fortune, and then he lost his mind. But that didn't stop the people of San Francisco from embracing Englishman Joshua Abraham Norton, the man who declared himself "The Emperor of the United States." He roamed the streets of the City by the Bay for decades dressed like a king, making imaginary laws, and being treated like a VIP. Jim Harriott chronicles the life of one of America's most colorful characters

Answer 2

Maybe Joseph Bonaparte, Napoleon's older brother?  He was once king of Spain, Sicily and Naples, then lived for a time in America.  Not sure about the lion part though.

Answer 3

Gerald Ford

America's 28th president was born Leslie King and later changed his name. He also turned down an opportunity to play in pro football for the Greenbay Packers and the Detriot Lions.