Award-winning photojournalist, Pete Souza, documents the meteoric rise of the charismatic Barack Obama from his first day in the U.S. Senate right up to the Pennsylvania presidential primary. More than 80% of these candid and stunning photographs capturing private and political moments have not been seen before. Souza provides extended commentary about each photo to place it in context, and describe the scene and participants. Photo-by-photo the viewer is allowed to examine the senator and candidate's path to the very cusp of history.