The National Constitution Center in Philadelphia has made changes to its permanent exhibition to coincide with President Barack Obama's first 100 days in office.
This is the first time the Constitution Center has updated its main exhibition, "The Story of We the People," since it opened in 2003. And President Obama is a major part of the updates.
The last case of the chronological wall in the main exhibition area has been upgraded with a new graphic panel featuring a photo of the president in Grant Park after his election.
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