It’s one thing for a Democratic presidential candidate to dominate a Democratic city like Philadelphia, but check out this head-spinning figure: In 59 voting divisions in the city, Mitt Romney received not one vote. Zero. Zilch.
These are the kind of numbers that send Republicans into paroxysms of voter-fraud angst, but such results may not be so startling after all.
“We have always had these dense urban corridors that are extremely Democratic,” said Jonathan Rodden, a political science professor at Stanford University. “It’s kind of an urban fact, and you are looking at the extreme end of it in Philadelphia.”
Most big cities are politically homogeneous, with 75 percent to 80 percent of voters identifying as Democrats.