The city filed suit after the Trump administration directed the National Park Service to remove panels on Jan. 22 that detailed the stories of nine people enslaved at the President's House.
The race is back in the city for the first time in nearly a decade and will bring professional cyclists to a course that winds through Philadelphia and features the iconic Manayunk Wall climb.
According to police, investigators are examining approximately 600,000 images and 70,000 videos recovered from the property. Physical evidence also is being tested at laboratories.