|Barack Obama speaks with supporters in|
Bethlehem, Pennsylvania [Getty]
It has been more than a month since Americans went to the polls to vote in a presidential primary.
On Tuesday, voters in Pennsylvania will have their say in who they think should be the presidential candidates.
With John McCain the presumptive nominee for the Republican party, most of the attention is on the Democrats and the ongoing battle between Senators Hillary Clinton and Barack Obama for their party's nomination.
Polls indicate that Clinton holds an advantage in the state.
And with 158 delegates at stake, the campaigning is becoming increasingly negative.
Obama has described his rival as disingenuous, claiming she changes her positions to suit the tastes and wishes of voters.
Clinton has fought back, saying that Obama has been clouding the last days of campaigning with negativity.
What will the results in Pennsylvania mean for the nomination? And what will the fallout on the Democratic party and the November election be?
Inside Story, with presenter Kamahl Santamaria, investigates.
Watch part two of this episode of Inside Story on YouTube
This episode of Inside Story aired on Monday, April 21, 2008 at 17:30 GMT
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Source: Al Jazeera