From Pew Research Center
As he has since January, this week, Barack Obama enjoyed much more visibility as far as the public was concerned than did John McCain. By a margin of 76% to 11% respondents in Pew’s weekly News Interest Index survey named Obama over McCain as the candidate they have heard the most about in recent days. But the same poll also shows that the Democratic candidate’s media dominance may not be working in his favor. Close to half (48%) of Pew’s interviewees went on to say that they have been hearing too much about Obama lately. And by a slight, but statistically significant margin – 22% to 16% – people say that recently they have a less rather than more favorable view of the putative Democratic nominee…