Republicans close the digital gap as web gurus go head-to-head

A mobile phone shows a Facebook page promoting Hillary Clinton for president in 2016, in this photo illustration taken April 13, 2015. REUTERS/Mike Segar

NEW YORK: She's thrived through two decades of elections; he's blown his competitors out of the water in a few short years on the scene. 

Now the two digital strategy gurus are facing off on opposite sides of the 2016 presidential race, as Republicans get serious about closing a digital strategy gap with Democrats that cost them dearly in the last election.