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1 day ago: US Democratic presidential candidate Illinois Senator Barack Obama (R)
and Pennsylvania Senator Bob Casey (C) buy fruits and vegetables from Robert Keagy's
(L) produce stand during a visit to the Columbia Market House in Columbia, Pennsylvania,
September 4, 2008.

1 day ago: US Democratic presidential candidate Illinois Senator Barack Obama steps
off his campaign plane at the Harrisburg International Airport Harrisburg, Pennsylvania,
on September 4, 2008. Obama is traveling to campaign events in York and Lancaster,
Pennsylvania, later today.

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4 hours ago: LANCASTER, PA - SEPTEMBER 4: Cleo Gutheridge of Lancaster, Pennsylvania,
waits to hear Democratic U.S. Presidential nominee Sen. Barack Obama (D-IL) speak
during a rally at Buchanan Park September 4, 2008 in Lancaster, Pennsylvania. Obama
is campaigning through Pennsylvania as U.S. Sen. John McCain (R-AZ) tonight accepts
the GOP nomination for U.S. President.

Photo from Getty Images
1 hour ago: LANCASTER, PA - SEPTEMBER 4: Democratic U.S. presidential nominee Sen.
Barack Obama (D-IL) speaks during a rally at Buchanan Park September 4, 2008 in
Lancaster, Pennsylvania. Obama is campaigning through Pennsylvania as U.S. Sen. John
McCain (R-AZ) accepts the Republican nomination for U.S. President tonight.

Photo from Getty Images
14 hours ago: LANCASTER, PA - SEPTEMBER 4: Democratic U.S. presidential nominee Sen.
Barack Obama (D-IL) greets supporters after he delivered a speech during a rally at
Buchanan Park September 4, 2008 in Lancaster, Pennsylvania. Obama is campaigning
through Pennsylvania as U.S. Sen. John McCain (R-AZ) accepts the Republican nomination
for U.S. President tonight.

Photo from Getty Images
14 hours ago: LANCASTER, PA - SEPTEMBER 4: Democratic U.S. presidential nominee Sen. Barack Obama(D-IL)speaks during a rally at Buchanan Park September 4, 2008 in Lancaster,Pennsylvania. Obama is campaigning through Pennsylvania as U.S. Sen. John McCain (R-AZ) accepts the Republican nomination for U.S. President tonight.