It was the win she needed to stay in the race, and Tuesday Pennsylvania voters gave Senator Hillary Clinton the green light to take the battle for the White House to the next round.
"Solid win, no question about it," said ABCNews' Geoorge Stephanopoulos. "She won in small towns, she won in suburbs , working class voters. This was the win she needed."
Clinton's ten point win over Senator Barack Obama was decisive, but the math is a bit more complicated.
Clinton remains behind in the delegate count- trailing Obama about 150 delegates. And in the popular vote, she's 500,000 votes behind without counting votes from Florida and Michigan.
"If you include Florida and Michigan," Clinton said, "Then the popular vote is very close. In fact, I actually have more votes from people who actually voted for me."
Now questions of electability are haunting Obama. Exit polling showed that among white voters for whom race mattered, 27 percent of democrats said they would vote for Senator John Mccain in November if Obama was the democratic nominee.
The fight for the democratic nomination is now headed to North carolina and Indiana, where Obama tried to rouse the crowd tuesday night.
"You can decide whether we're going to travel the same worn path," Barack Obama said, "or whether we chart a new course that offers real hope for the future."
Obama, Clinton, and Mccain are expected to take a break from campaigning and head back to Washington tonight for a vote on equal rights legislation.