By the beginning of April , polls of Pennsylvanians showed Obama trailing Clinton by an average of 5 points .
Public opinion polling from early January 2007 through mid-February 2008 consistently gave Hillary Clinton a double digit lead over Barack Obama .
By the beginning of April , polls of Pennsylvanians showed Barack Obama trailing Clinton by an average of 5 points .
Public opinion polling from early January 2007 through mid-February 2008 consistently gave Hillary Clinton a double digit lead over Barack Obama .