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DES MOINES, IA - FEBRUARY 1: Republican presidential candidate Sen. Ted Cruz (R-TX) speaks at a caucus night rally on February 1, 2016 in Des Moines, Iowa. Cruz beat out frontrunner Donald Trump and other contenders to win the Iowa caucuses.  (Photo by Brendan Hoffman/Getty Images)
DES MOINES, IA - FEBRUARY 1: Republican presidential candidate Sen. Ted Cruz (R-TX) speaks at a caucus night rally on February 1, 2016 in Des Moines, Iowa. Cruz beat out frontrunner Donald Trump and other contenders to win the Iowa caucuses.  (Photo by Brendan Hoffman/Getty Images)

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Alec Ross, former senior adviser for innovation to Secretary of State Hillary Clinton and author of The Industries of the Future, says that Ted Cruz's campaign has been the most successful so far in using technology in the presidential campaign.

The candidate using social media the best is ...

Alec Ross, former senior adviser for innovation to Secretary of State Hillary Clinton and author of The Industries of the Future, says that Ted Cruz's campaign has been the most successful so far in using technology in the presidential campaign.