I didn't need fixed. "Large urban centers are dominated by Democrats" says the same thing without redundant modifiers. "Large urban centers" does not imply only large urban centers on the coasts. But, if we're gonna nitpick, of the top 10 mega urban centers in the US, only two of them are landlocked, Chicago up through Milwaukee, and Dallas/Ft Worth/Arlington. The rest are on the coasts. And regardless, they're all dominated by Democrats anyway. Innards. Outerds. They all D's.FIFY.