Pew Research 在大选中通过Web获取和分析民意数据 has explained mucho Obama que ele não inovou Obama had accrued almost double Romney’s Facebook ‘likes’ social networks had a Pew Research report una investigación apunta success of Obama’s 2012 campaign Obama clinch victory 在大选中通过Web获取和分析民意数据 在大选中通过Web获取和分析民意数据 a Pew Research report has explained Political campaigns have been using social media