The majority of votes came from those in opposition to her and her twitter followers opinions... because all things being equal, the word got out and those who support POTUS participated.  Or those that just wanted to troll Rosie. In general though you'd be right about polls.  They aren't a reliable indicator of much of anything.  You don't skew a survey now and again?  I do because the way they frame the questions pisses me off and some stuff is just plain none of their dang business.