On Facebook , users expressed support for nearly twice as many Obama posts as they did Romney posts . Barack Obama 's campaign increased its online dominance , a new study says . The Obama campaign and its supporters were more active online , the study says . GOP candidate Mitt Romney is closing the gap , it says .
Barack Obama 's campaign increased its online dominance , a new study says . The Obama campaign and its supporters were more active online , the study says . GOP candidate Mitt Romney is closing the gap , it says .