Three Pennsylvania polls this week suggest that Hillary Clinton is rebuilding her edge in Pennsylvania or at least starting to hold off Barack Obama, while Obama struggles to put the “bitter” remark controversy behind him. But whatever the popular vote outcome, CQ Politics is projecting today that Clinton’s margin of victory when it comes to delegates will be slim.

In a survey conducted April 14 by Rasmussen Reports, Clinton leads Obama by 50 percent to 41 percent with a 4 point margin of error. On Monday, American Research Group had given Clinton a 20 point lead based on an April 11-13 survey, after a series of polls that showed Obama catching Clinton in the state. Clinton had led by 5 points in Rasmussen’s poll last week.

A Quinnipiac University survey conducted April 9-13 had her lead at 50 percent to 44 percent with a 2.1 percent margin of error, unchanged from its April 8 poll. Quinnipiac said it did not find noticeable fallout from Obama’s remarks in the part of its survey conducted April 12-13, after they were reported on the Huffington Post.

A SurveyUSA poll conducted April 12-14 has Clinton ahead 54 percent to 40 percent with a 3.9 percent margin of error.