All of Pennsylvania ...

Strategic Vision (R) (4-18/20) Clinton 48%, Obama 41%.

ARG (4-17/19) Clinton 54%, Obama 41%.

Mason-Dixon (4-17/18) Clinton 48%, 43%.

(ed.note: An earlier version of this post wrongly included an old SurveyUSA poll from early April. I have removed the interpretation of the polls that followed the numbers since it focused on the out-of-date number that I thought was current. My apologies for the error.)