These photographs were taken while Senator Bingaman attends a hearing in Washington in june, 2012

These photographs were taken while Senator Bingaman attends a hearing in Washington in March, 2012

These photographs were taken while Senator Bingaman attends a hearing in Washington in February,2012

These photographs were taken while Senator Bingaman attends an awards reception for the National Association of Counties (NACo) in May, 2011.

These photographs were taken while Senator Bingaman speaks at a hearing in November, 2011.

These photographs were taken while Senator Bingaman speaks at a hearing in July, 2011.

These were the photographs of Senators Bingaman and Mark Udall while they talk during an Energy Committee hearing in June, 2011.

These photographs were taken while Senator Bingaman attends a hearing in March, 2011.

These photographs were taken while Senator Bingaman attends a hearing in February, 2011.

These photographs were taken during a hearing in the year 2011.