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Attorney General of Delaware and son of Vice President Joe Biden, Beau Biden, waves to the audience at the Time Warner Cable Arena in Charlotte, North Carolina, on September 6, 2012 on the final day of the Democratic National Convention (DNC). US President Barack Obama is expected to accept the nomination from the DNC to run for a second term as president. AFP PHOTO Stan HONDA (Photo credit should read STAN HONDA/AFP/GettyImages)
Attorney General of Delaware and son of Vice President Joe Biden, Beau Biden, waves to the audience at the Time Warner Cable Arena in Charlotte, North Carolina, on September 6, 2012 on the final day of the Democratic National Convention (DNC). US President Barack Obama is expected to accept the nomination from the DNC to run for a second term as president. AFP PHOTO Stan HONDA (Photo credit should read STAN HONDA/AFP/GettyImages)

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CNN's Brooke Baldwin and Paul Begala discuss the death of Beau Biden, the son of Vice President Joe Biden.

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CNN's Brooke Baldwin and Paul Begala discuss the death of Beau Biden, the son of Vice President Joe Biden.