Pennsylvania voters get say in key primary

The fate of the battle for the Democratic presidential nomination may be on the line Tuesday as voters head to the polls in Pennsylvania's primary.
Polls opened at 7 a.m. ET and will close at 8 p.m. in the state, which has 158 delegates at stake.
Sens. Hillary Clinton and Barack Obama both would love to come out of Pennsylvania with a win, but most political analysts agree that a victory is crucial for Clinton.
Obama leads in the delegate count, the popular vote and the number of states won so far this primary season. If Clinton is victorious, it would allow her to make a small dent in Obama's lead, and more.
"If she wins Pennsylvania by a hefty margin, she can prove she can win the traditional Democratic constituencies needed to win the election, mostly white working-class voters," said Gloria Borger, a CNN senior political analyst.
Many Clinton supporters agree with that observation.
Rep. John Murtha, D-Pennsylvania, a top Clinton surrogate, said the former first lady has to carry the state impressively.
"Well, she has to. That's all there is to it," Murtha said.