Watch the complete Mario Lopez interview with Barack Obama in Las
Vegas!

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What could possibly be left to ask of Senator Barack Obama? For part two of Mario Lopez’s interview, he decided to give Obama a surprise pop quiz -- and got answers no one has heard before!

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Mario Lopez raced to Las Vegas to interview Senator Barack Obama -- and encountered so many obstacles, it almost didn’t happen! From oversleeping to missing clothes, check out Mario's race to the interview he almost missed

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"Extra" host Mario Lopez suited up for a photo op with presidential candidate Barack Obama. Click here to check out Mario's interview with the Illinois senator.

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