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Vice President Joe Biden takes his sunglasses off as he arrives for a campaign event with President Barack Obama in Portsmouth, New Hampshire on September 7, 2012.
Vice President Joe Biden takes his sunglasses off as he arrives for a campaign event with President Barack Obama in Portsmouth, New Hampshire on September 7, 2012.

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How ready is Joe Biden for a 2016 run?

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How ready is Joe Biden for a 2016 run?

CNN's Jake Tapper takes a closer look at Vice President Joe Biden's possible motives behind his actions in 2014.