At least 73 members of Congress have sponsored legislation in recent years that could benefit businesses in which either they are invested, according to a Post investigation. As a prime example, the interactive video “One Senator’s Story” was programmed to trigger an interactive map that highlights the proximity of Sen Richard Shelby’s property holdings to the revitalized section of downtown Tuscaloosa that he championed with earmarks worth $124 million. Video Producer: Ben de la Cruz Design and Development: Wilson Andrews Reporter: David S. Fallis and Ben de la Cruz