Viewer's guide to Saturday's scattered voting

Saturday's presidential nominating contests have a sense of "day after the big party" leftovers. There are some broken pretzels, that strange Jello mold your cousin brought that nobody ate and, somehow, magically, a half rack of ribs that never got out of the fridge.

The contests are also oddly scattered around. While Super Tuesday had a concentrated swath of contests for both parties across the South that were closely watched, Spotty Saturday has