Mourning in Boston

The hearse carrying the casket of Sen. Edward Kennedy arrives at the John F. Kennedy Presidential Library, Thursday, Aug. 27, 2009, in Boston. Kennedy died late Tuesday night after a year-long battle with brain cancer.

An honor guard carries the casket of Sen. Edward Kennedy as the hearse arrives at the John F. Kennedy Presidential Library, Thursday, Aug. 27, 2009, in Boston.

An honor guard carries the casket of Sen. Edward Kennedy from the hearse as it arrives at the John F. Kennedy Presidential Library, Thursday, Aug. 27, 2009, in Boston. Kennedy died late Tuesday night after a year-long battle with brain cancer.

Family members follow an honor guard carrying the casket of Sen. Edward Kennedy during the arrival at the John F. Kennedy Presidential Library, Thursday, Aug. 27, 2009, in Boston.

Family members of Sen. Edward M. Kennedy, including at far left, Teddy Kennedy Jr. (blue tie), Jean Kennedy Smith, foreground center (in glasses), and widow Victoria Kennedy, right, watch as an honor guard carries his casket into the John F. Kennedy Presidential Library in Boston on Thursday, Aug. 27, 2009. Kennedy will lie in repose until his funeral Mass in Boston on Saturday.

Victoria Kennedy, right, and Jean Kennedy Smith, second right, look on as an honor guard carries the casket of Sen. Edward Kennedy as it arrives at the John F. Kennedy Presidential Library, Thursday, Aug. 27, 2009, in Boston.

An honor guard carries the flag-draped casket of Sen. Edward M. Kennedy past family members, including at front left, Teddy Kennedy Jr., Jean Kennedy Smith, center, and widow Victoria Kennedy, far right, into the John F. Kennedy Presidential Library in Boston Thursday, Aug. 27, 2009. Kennedy will lie in repose until his funeral Mass in Boston on Saturday.

An honor guard carries the flag-draped casket of Sen. Edward M. Kennedy past family members into the John F. Kennedy Presidential Library in Boston Thursday, Aug. 27, 2009. Kennedy will lie in repose until his funeral Mass in Boston on Saturday.

An honor guard carries the flag-draped casket of Sen. Edward M. Kennedy into the John F. Kennedy Presidential Library in Boston Thursday, Aug. 27, 2009. Kennedy will lie in repose until his funeral Mass in Boston on Saturday.

Jean Kennedy Smith, sister of Sen. Edward Kennedy, is followed by family members as she follows the casket into the John F. Kennedy Presidential Library in Boston on Thursday, Aug. 27, 2009.

Members of the public line up to pay their respects to Sen. Edward Kennedy at the John F. Kennedy Presidential Library in Boston on Thursday, Aug. 27, 2009.

Caroline Kennedy greets well-wishers lined up to pay their respects to Sen. Edward Kennedy at the John F. Kennedy Presidential Library, Thursday, Aug. 27, 2009, in Boston.

Kennedy staff members stand in the lobby of the John F. Kennedy Presidential Library as the flag draped casket of Sen. Edward M. Kennedy arrives in Boston, Thursday Aug. 27, 2009. Sen. Edward M. Kennedy of Massachusetts, the last surviving brother in a political dynasty and one of the most influential senators in history, died Tuesday night at his home on Cape Cod after a year-long struggle with brain cancer. He was 77.

An honor guard stands at the casket of Sen. Edward Kennedy at the John F. Kennedy Presidential Library in Boston on Thursday Aug. 27, 2009. Sen. Edward M. Kennedy of Massachusetts, the last surviving brother in a political dynasty and one of the most influential senators in history, died Tuesday night at his home on Cape Cod after a year-long struggle with brain cancer. He was 77.

Victoria Kennedy, widow of Sen. Edward M. Kennedy, thanks visitors for their condolences while standing next to Sen. Kennedy's nephew Joseph Kennedy at the John F. Kennedy Presidential Library in Boston, Thursday Aug. 27, 2009. Kennedy died Tuesday night at his home on Cape Cod after a year-long struggle with brain cancer. He was 77.

Bobby Kennedy Jr., left, greets visitors who are in line to pay respects to his uncle, Sen. Edward Kennedy, at the John F. Kennedy Presidential Library in Boston Thursday, Aug. 27, 2009. Kennedy will lie in repose there until his funeral Mass in Boston on Saturday.

Robert Shriver III, right, embraces his cousin Edward Kennedy Jr. next to the casket of Sen. Edward Kennedy at the John F. Kennedy Presidential Library in Boston, Thursday Aug. 27, 2009.

An unidentified well-wisher pauses before entering the John F. Kennedy Presidential Library and Museum to respect to Sen. Edward Kennedy, Thursday, Aug. 27, 2009, in Boston.

Well-wishers are overcome with emotion as they file past the coffin of Sen. Edward M. Kennedy as he lays in repose at the John F. Kennedy Presidential Library and Museum, Thursday, Aug. 27, 2009, in Boston.

Standing Watch — AP Photo/Charles Dharapak

An honor guard member stands watch as Sen. Edward Kennedy lays in repose at the John F. Kennedy Presidential Library and Museum, Thursday, Aug. 27, 2009, in Boston.