An Honor Guard carries the casket of Sen. Ted Kennedy to his grave on Saturday. Kennedy is buried alongside his slain brothers, John and Robert, in Arlington National Cemetery. Doug Mills / AP Photo A crowd waves to the hearse carrying Sen. Kennedy's body. Pablo Martinez Monsivais / AP Photo Members of the Kennedy family wave as their motorcade passes the U.S. Capitol. Pablo Martinez Monsivais / AP Photo Mourners from around the country crowd the steps to greet Kennedy's hearse as it arrives at the Capitol building on Saturday. Mandel Ngan, AFP / Getty Images President Barack Obama applauds as he prepares to speak at the funeral of Sen. Kennedy. Three former presidents -- George Bush, Bill Clinton, and Jimmy Carter -- also paid their respects at the service. Jewel Samad, AFP / Getty Images The casket of late Sen. Edward Kennedy is carried out of the Our Lady of Perpetual Help Basilica at the end of his funeral mass in Boston on Saturday. Jewel Samad, AFP / Getty Images Victoria Kennedy, widow of Sen. Edward Kennedy watches as the casket is carried away after the funeral mass. Stephan Savoia / AP Photo Senator Edward Kennedy's son, Congressman Patrick Kennedy, touches his father's casket after speaking as President Barack Obama heads to the stage to deliver a eulogy at the funeral. Brian Snyder / Reuters Teddy Kennedy Jr., hugs his brother Rep. Patrick Kennedy at the Roman Catholic Funeral Mass for Sen. Edward M. Kennedy. Alex Brandon / AP Photo Edward Kennedy Jr. kisses the coffin of his father. Jason Reed / Reuters Edward Kennedy III recites some his grandfather's own words during the "prayers of the faithful" section of funeral services. Brian Snyder, Pool / Getty Images The casket of Senator Edward Kennedy is brought into Our Lady of Perpetual Help Basilica by a U.S. military honor guard. Alex Brandon / AP Photo Former President Bill Clinton, Secretary of State Hillary Clinton, former President George W. Bush, President Barack Obama and first lady Michelle Obama, Vice President Joe Biden and his wife Jill Biden, former first lady Rosalynn Carter and former President Jimmy Carter wait for the Roman Catholic Funeral Mass for Sen. Edward Kennedy. Brian Snyder / AP Photo Caroline Kennedy arrives for the Roman Catholic Funeral Mass for Sen. Edward Kennedy at Our Lady of Perpetual Hope Basilica in Boston, on Saturday, Aug., 29, 2009. Charles Dharapak / AP Photo The body of Ted Kennedy is carried by an honor guard into the John F. Kennedy Library where it will lie in repose for two days. Stan Honda, AFP / Getty Images People wait in line to pay their last respects in Boston. Emmanuel Dunand, AFP / Getty Images Sen. John Kerry reacts at the flag-draped casket. Elise Amendola / AP Photo Robert Shriver III, right, embraces his cousin Edward Kennedy Jr. next to the casket. Charles Krupa / AP Photo Ted Kennedy's family watches as his casket is carried by an honor guard, left, to a hearse at the Kennedy compound in Hyannis Port on Thursday, August 27. The senator's body was taken to the presidential library in Boston before his burial among his brothers at Arlington National Cemetery. Stewe Milne / AP Photo The receiving line after John F. Kennedy's funeral. Cecil Stoughton, Time Life Pictures / Getty Images Jackie Kennedy escorts Caroline, and John Jr. down the Capitol steps after her husband's casket was placed in the rotunda on November 24, 1963. AP Photo Following the assassination of Robert Kennedy in 1968, citizens spontaneously lined the railroad tracks as the funeral train carrying his casket passed by. Bill Eppridge, Time Life Pictures / Getty Images Ted Kennedy, right, carries his brother Bobby's casket after his funeral. Ron Galella, WireImage / Getty Images John F. Kennedy Jr., and his sister, Caroline Kennedy Schlossberg, as their mother, Jacqueline Kennedy Onassis, is carried from New York's St. Ignatius Church following a funeral Mass in 1994. Ed Bailey / AP Photo After RFK's son Michael Kennedy was killed in a skiing accident in Aspen, Colorado, in 1998, his cousins and son, Michael Jr., act as pallbearers in Centerville, Mass. on Cape Cod. Stephen Rose, Liaison / Getty Images In July 1999, John F. Kennedy Jr. was killed while piloting his wife, Carolyn Bessette Kennedy, and his sister-in-law, Lauren Bessette, to Martha's Vineyard. A public memorial mass was held at St. Patrick's Cathedral in New York. Evan Angostini, Liaison / Getty Images The Kennedy family, including Robert F. Kennedy Jr. and Ted Kennedy (in sunglasses) after committing the ashes of JFK Jr., Carolyn Bessette Kennedy, and Lauren Bessette to sea. Jim Cole / AP Photo In mid-August 2009, Eunice Kennedy Shriver's children—including California's first lady Maria Shriver, left)—and grandchildren attended her funeral in Hyannis Port, Massachusetts. The fifth of Joseph and Rose Kennedy's nine children, Eunice was the founder of the Special Olympics. Ted Kennedy, who was ailing, was unable to attend. Darren McCollester / Getty Images