George's Bottom Line: Pennsylvania Votes
George explains what Clinton must do to "win" Tuesday's primary
— -- Voting resumes Tuesday when Pennsylvania becomes the first state to cast ballots in six weeks. A new Quinnipiac Poll in Pennsylvania shows Sen. Hillary Clinton's lead over Sen. Barack Obama has shrunk to 7 points, 51-44 percent.
ABC News' Chief Washington Correspondent George Stephanopoulos talked with "World News" Anchor Charles Gibson about both campaigns efforts' to manage expectations.
CHARLES GIBSON: Both candidates in different states have been appealing disproportionately to different constituencies in party. So which constituencies overall will be key tomorrow -- women-- what else?
GEORGE STEPHANOPOULOS: Well, definitely for Senator Clinton, seniors. There's a high proportion of seniors in the state of Pennsylvania. She's won them big in other states, she has to win them big here.
Also, I think superdelegates are going to be looking at white working class men and to see how much damage Senator Obama has taken in that group after his 'bitter' comments and the controversy over Rev. Wright.
On the other hand, Sen. Obama's campaign has had a real big registration drive among young voters in the state of Pennsylvania. He's won them big in other states. And they've registered more than 300,000 new voters in Pennsylvania for this primary.
CHARLES GIBSON: I've noted in the last couple of days that both candidates - both campaigns have been playing the expectations game, which always comes up. How are they playing that? How is it important?
GEORGE STEPHANOPOULOS: Well, everybody agrees on one thing if Sen. Obama wins Pennsylvania tomorrow, this race is over. That's why he was out there saying today, he can't win it.
On the other hand, for Sen. Clinton she probably needs a double digit win so she can make the argument, number one, that she still have credible chance of winning more popular voters overall than Barack Obama, and so she can argue to superdelegates that Sen. Obama just can't win the big states that Democrats need to win.If it's less than that, I think the superdelegates will keep trickling toward Obama.