The funeral of Sen. Edward M. Kennedy

The funeral procession crosses the Memorial Bridge as it heads to Arlington National Cemetery. The Lincoln Memorial is in the background.  (Susan Walsh / Associated Press)

Kennedy’s casket stands in Our Lady of Perpetual Help Basilica during his funeral Mass.  (Samad Jewel / AFP/Getty Images)

Ted Kennedy Jr. hugs his brother, Rep. Patrick J. Kennedy, at the Roman Catholic funeral mass for their father.  (Alex Brandon / Associated Press)

Edward Kennedy Jr. awaits the arrival of his father’s casket at Our Lady of Perpetual Help Basilica.  (Chip Somodevilla / Getty Images)

House Speaker Nancy Pelosi arrives at Our Lady of Perpetual Help Basilica in Boston for Sen. Edward M. Kennedy’s funeral.  (Chip Somodevilla / Getty Images)

Sen. John Kerry (D-Mass.) arrives for Kennedy’s funeral Mass.  (Charles Dharapak / Associated Press)

The program for the memorial service for Sen. Edward M. Kennedy, which was held Friday at the John F. Kennedy Presidential Library in Boston.  (Stan Honda / AFP/Getty Images)

Yo-Yo Ma performs at the funeral Mass for Sen. Edward M. Kennedy.  (CJ Gunther / EPA)

A nine-member Armed Forces honor guard slowly carries the flag-draped coffin, covered in plastic, in a strict cadence up to the stone steps of the Basilica of Our Lady of Perpetual Help, also known as the Mission Church.  (Emmanuel Dunand / AFP/Getty Images)

The Armed Forces honor guard folds the flag that draped the casket of Sen. Edward M. Kennedy.  (Jewel Samad / AFP/Getty Images)

Nearly 60 members of the Senate and 21 former senators, as well as dozens of members of the House of Representatives, pack the pews of the basilica as Sen. Edward M. Kennedy’s casket is borne up the aisle. Also attending were actor Jack Nicholson, actress Lauren Bacall, singer Tony Bennett and Boston Celtics basketball legend Bill Russell.  (CJ Gunther / EPA)

The casket of Sen. Edward M. Kennedy is carried by an honor guard into Our Lady of Perpetual Help Basilica in Boston on Saturday. Three former presidents and the nation’s elite gathered in the rain to attend the Roman Catholic funeral for Kennedy, a legendary political patriarch.  (Stan Honda / AFP/Getty Images)

President Obama greets Cardinal Sean O’Malley, archbishop of Boston, before the funeral Mass.  (Alex Brandon / Associated Press)

Gerry Adams, the president of Sinn Fein, arrives for the funeral Mass for Sen. Edward M. Kennedy. As a senator from an Irish immigrant family, Kennedy pushed strongly for peace in Northern Ireland.  (Matt Campbell / EPA)

Victoria Kennedy watches as the casket of her husband, Sen. Edward M. Kennedy, is placed in a hearse at the John F. Kennedy Presidential Library in Boston on the way to the funeral Mass.  (Michael Dwyer / Associated Press)

Joan Kennedy, Sen. Edward M. Kennedy’s first wife, and son Patrick Kennedy arrive at Our Lady of Perpetual Help Catholic Church in Boston for the funeral.  (Matt Campbell / EPA)

Members of Congress enter the Basilica of Our Lady of Perpetual Help for the funeral.  (Chris Hondros / Getty Images)