What is it with these people ! BARACK OBAMA spent a record $760 million getting himself elected president. But his campaign, Obama for America, still owes Philadelphia nearly $24,000 for several pre-election events, and the cash-strapped city hasn’t given up its collection efforts. The most expensive event was an Oct. 4 rally on the Parkway, featuring Bruce Springsteen. The city’s expenses came to $9,050, including sound systems, lighting, platforms, bleachers and clean-up costs. There were smaller charges for a series of Obama appearances on Oct. 11, at Progress Plaza, the Mayfair Diner and Vernon Park, and $3,666 for a Joe Biden rally at Marconi Plaza the day before the election. Mechelle Sabb, special-event coordinator in the Managing Director’s Office, said the bills remain unpaid in spite of a December letter sent to Obama headquarters in Chicago, warning that non-payment could jeopardize his welcome at future events in Philadelphia or Fairmount Park. Calls to ...