Democratic candidates Barack Obama and Hillary Clinton have been taking swings at each other just hours before polls open in the Pennsylvania primaries. The pair have traded insults in some of the most negative attacks since the beginning of their campaig

Obama said Clinton was trapped in the past.

“When people question her tactics she says: ‘well that's what the Republicans will do to Obama.’ Look I am not interested in mimicking what the Republicans did to the Clintons over the past 20 years. She learned the wrong lesson – I want to change them not become them,” Obama said.

While he branded her a game-player, she said he was all style and no substance. She even mocked his campaign slogan -

“Can we do this? Well, yes we can. But that's not the right question. Will we do this? Yes we will. Yes we will! Yes we will,” Clinton said.

The candidates also crisscrossed the state of Pennsylvania trying to win over voters.

Their messages resonated in urban areas. But there is still a part of Pennsylvania that cares little about the race.

Obama wins over the Amish?

People in the heart of Amish county in Pennsylvania believe in separating themselves from the modern world. Horse-drawn carriages are the main mode of transportation. The Amish, a Christian sect, don't use electricity, phones and they don't like to be photographed as it is against their religious beliefs.

And their political views are equally conservative. A typical Amish man, Jack Meyer, says most Amish vote Republican. He says many Amish – like one of his friends – are not fans of Hillary.

“She said we certainly don't want a woman for a president of the United States. And certainly not Hillary,” Meyer says.

But if he were to pick a Democrat, Jacks says he would go for Obama.

“He is very a matter-of-fact talking and laid-back. More like the man on the street,” Meyer says.

Just days before the Pennsylvania primary, Obama's state-based campaign website posted a page aimed at the Amish. But some called it another ‘out-of-touch’ move by the Obama campaign and even a possible prank.

However, Nate Bomberger – an Obama volunteer – is say it’s a serious effort.

About five Amish showed up for the local Obama rally. They declined to comment on camera but told us they had come out of curiosity.

So it seems that Obama has at least managed to spark some interest in one of the most unlikely demographics in a race so tight that every vote matters.