American Mutoscope & Biograph Co. first filmed the William McKinley campaign in 1896, and was a "Client", the first candidate to use the motion picture medium as campaign publicity. The company also was the first to film the inauguration in 1897, along with the latter, the Edison Co. Biograph is the oldest movie company in America and in existence today.
This film is posted online to the Library of Congress' National Screening Room.