After a series of polls showing Barack Obama catching up with Hillary Clinton in Pennsylvania, American Research Group says Clinton has jumped out to the kind of big lead she had earlier in the race, besting Obama 57 percent to 37 percent. The poll was conducted April 11-13 (the story about the Obama “bitter” remark broke late on the first day of the survey) and has a 4 percent margin of error.

Clinton has a big 64 percent to 29 percent lead among white voters who comprised 82 percent of the sample. Obama leads 79 percent to 18 percent among black voters (14 percent of the sample). Nearly a quarter of voters say they have been turned off by Obama’s “excessive” advertising campaign which the Philadelphia Inquirer says today has broken records.