You used 1 poll that has Trump slightly ahead, here is an average of 5 polls showing Clinton ahead of Trump. Cruz and Rubio both ahead of Clinton. Rubio has the biggest lead in the averages.www.realclearpolitics.com/epolls/2016/president/us/general election trump vs clinton-5491.htmland here are all of the head-to-head averages, showing Sanders whipping Trump (which is shocking to me)www.realclearpolitics.com/epolls/2016/president/2016 presidential race.htmlOnly Rubio beats both Trump and Sanders.