Ed Rendell's quite the longshot, ranked behind three dozen other Democrats and Republicans - including ex-Pa. Sen. Rick Santorum and former vice presidential candidate Sarah Palin.
At least Rendell is given a better chance than November's loser, Mitt Romney; Saturday Night Live alum, Minnesota Sen. Al Franken; TV tycoon Donald Trump; and George Clooney.
But you never know.
All sorts of favorites - from senators Edmund Muskie and Howard Dean to businessman Herman Cain - faded fast after becoming front runners, while little-known governors Jimmy Carter and Bill Clinton tilted at windmills and won the White House.
By the way, check out some quips about 2016's possible candidates by Edward McClelland of 5NBC in Chicago:
Clinton: "Oh, yeah, and the Spin Doctors are going to have another #1 album. The '90s are over."
Christie: "One hundred years after William Howard Taft left the White House in a wheelbarrow, America is ready for another fat president."
Biden: "At 73, Biden would be the oldest man ever elected president. He should be hitting on widows at senior center bingo."
Rubio: "I see your first black president, and raise you with the first Latino president. The best bet on the board."
Ohio Sen. Rob Portman: "Barack Obama and John F. Kennedy were the last two senators elected president. But they had personalities."
Romney: "Even Romney knows this bet would be a bad investment."
Santorum: "He's going to keep running, just to clean up his Google results."
Trump: "I don't even need to think of a joke. You already laughed."
Contact staff writer Peter Mucha at 215-854-4342 or firstname.lastname@example.org.