Though left-handers comprise just 10% of the population, they are dominating presidential politics.

Their recent success transcends ideology. Since 1974, presidents Ford, Reagan, George H.W. Bush, and Clinton have all favored their left hands, while President Carter and the current President Bush are righties. The trait is also not exclusive to winning candidates: Vice President Gore is left-handed, as are past presidential contenders Robert Dole, John Edwards, Bill Bradley, and Ross Perot. A prominent New Yorker who flirted with a White House bid, Mayor Bloomberg, is a lefty.