An aggressive gaffe machine, representing a state Obama must win in 2012. Just who is Debbie Wasserman Schultz? The frizzy-haired Floridian was President Barack Obama’s surprise choice to head the Democratic National Committee following the departure of former Virginia Gov. Tim Kaine, who is now running for a U.S. Senate seat in Virginia. Born in Queens, New York, Wasserman Schultz, a former legislative aide, was, at one time, the youngest female legislator in Florida history. A prolific fundraiser — she reportedly raised more than $17 million for her congressional colleagues in 2006 — she nonetheless seems an odd choice to...