text: March 7, 2015: President Barack Obama, First Lady Michelle Obama and daughters Sasha and Malia begin their walk across the Edmund Pettus Bridge to commemorate the 50th Anniversary of the Selma to Montgomery civil rights marches. The Obama family marched with former President George W. Bush and former first lady Laura Bush. Hundreds of civil rights movement veterans were part of the throng, including U.S. Rep. John Lewis, D-Georgia. Official White House Photo by Lawrence Jackson