Opinion: The early Pennsylvania call...

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Barack Obama and his staff can exhale. The polls closed in Pennsylvania at 8 p.m. (EDT) without an immediate call on the primary’s outcome. And that means Obama dodged an early bullet.

Hillary Clinton still could get the type of victory she needs to proceed with a degree of enthusiasm (and the ability to slough off calls for her give it up).

But a blowout -- a win by 20 percentage points or more -- would seem unlikely, given that CNN, MSNBC and Fox News all have declared it too early to make a projection.

-- Don Frederick