Sen. Hillary Clinton continues to lead Sen. Barack Obama in the Democratic race for president in the Pennsylvania primary, according to the final Quinnipiac University poll. The poll was released this morning.

With one day before Pennsylvanians cast their ballots in the primary, the Quinnipiac poll shows Sen. Clinton holding a 51 to 44 percent lead over Sen. Obama in the state.

The poll was taken Friday, Saturday and Sunday. The numbers are similar to those that showed Sen. Clinton with a lead over the past two weeks. She held a 6-point edge last week.

White voters back Sen. Clinton, 57 to 38 percent, while blacks back Sen. Obama, 84 to 10 percent, the poll shows.

A look at other subgroups shows:

• Women back Sen. Clinton, 57 to 38 percent, while men are for Sen. Obama, 53 to 42 percent.

• White Catholics are for Sen. Clinton, 66 to 29 percent.

• Voters younger than 45 go with Sen. Obama, 57 to 41, while older voters back Clinton 54 to 40 percent.

"Pennsylvania voters apparently made up their minds a couple of weeks ago and nothing has happened since to change them. An extraordinary turnout effort by Sen. Barack Obama's campaign could snatch this victory from Sen. Hillary Clinton, but that does not appear likely," said Clay F. Richards, assistant director of the Quinnipiac University Polling Institute.

From April 18 to 20, Quinnipiac University surveyed 1,027 Pennsylvania likely Democratic primary voters. The poll has a margin of error of +/- 3.1 percentage points.