A new poll suggests Barack Obama is gaining ground in Pennsylvania.
Two weeks before the Keystone State primary, the Quinnipiac University poll shows Hillary Rodham Clinton still out front among Democratic voters there. Fifty percent of those surveyed favored Clinton, while 44 percent said they were backing Obama.
Clinton's margin in the survey has been shrinking over the past few weeks. In mid-March she had a lead of 12 percentage points. Last week, that had dropped to nine, and now it's six.
The poll suggests Obama remains more popular among the Pennsylvania's black voters, 75 percent to 17 percent, while Clinton does better among whites, 56 percent to 38 percent.
As in past surveys, Clinton leads among older voters and Obama leads among younger ones.
The margin of error in the Quinnipiac poll is plus or minus 2.7 percent.