More primary voters head to the polls this week, but this time, the nominees are becoming clearer.  President Obama will likely clinch the Democratic nomination this week, while Mitt Romney has tapped longtime aide Beth Myers to start his rigorous search for a running mate ahead of the Republican National Convention in August.

FOX News Radio's Jeff Monosso reports in this election update:

Audio clip:

From America's Election Headquarters...

Five states head to the primary polls tomorrow (Tuesday), and President Obama expects to reach the delegates needed in the low-key Democratic primary.  On the Republican side, presumptive nominee Mitt Romney expects to also to do well tomorrow in his delegate count.

Meantime, speculation swirls over who Romney will pick as VP.  Some of the names that keep popping up: Florida Senator Marco Rubio.

(Rubio) "We're gonna let his process play itself out."

...Rubio on CNN.  Also leading the pack of VP contenders in recent polls: New Jersey Governor Chris Christie, Wisconsin Congressman Paul Ryan and former Secretary of State Condoleezza Rice.

Jeff Monosso, FOX News Radio.

WATCH as Indiana Governor Mitch Daniels weighs in on the race for the White House HERE:

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