Must be every single person who's planning to vote for him.
Pennsylvania Democratic Primary
Tuesday, April 22 | Delegates at Stake: 188
http://www.realclearpolitics.com/epo...imary-240.html
Polling Data
Poll Date Sample Clinton Obama Spread
RCP Average 04/10 - 04/20 - 47.7 42.1
Clinton +5.6
Zogby 04/19 - 04/20 602 LV 48 42
Clinton +6.0
Mason-Dixon 04/17 - 04/18 625 LV 48 43
Clinton +5.0
Rasmussen 04/17 - 04/17 730 LV 47 44
Clinton +3.0
PPP (D) 04/14 - 04/15 1095 LV 42 45
Obama +3.0
SurveyUSA 04/12 - 04/14 638 LV 54 40
Clinton +14.0
LA Times/Bloomberg 04/10 - 04/14 623 LV 46 41
Clinton +5.0
Strategic Vision (R) 04/11 - 04/13 576 LV 49 40
Clinton +9.0