If Dan Quale is smart, and he is, he won't run again because he has no chance to win the nomination. IMO
The media has portrayed him as a laughing stock since the day Bush 41 picked him for VP.
It has been 14 years since Quayle has left the public's eye. A great campaign can change long-ago perceptions. How does it go? A week is an eternity in politics? How about Nixon's 8 years? Quayle can reemerge if he wants: it's upto him. Either way it's certainly not upto you.