FILE - U.S. Rep. John Lewis, D-Ga., center, talks with those gathered, including Ethel Kennedy, center, and Rev. Jesse Jackson, on the historic Edmund Pettus Bridge during the 19th annual reenactment of the "Bloody Sunday" Selma to Montgomery civil rights march across the bridge in Selma, Ala., Sunday, March 4, 2012, 47 years after the historic march that led to the Voting Rights Act. (AP Photo/Kevin Glackmeyer, File)

FILE - Then President-elect John F. Kennedy, standing at center, is surrounded by members of his family in the home of his parents in December 1960, in Hyannis Port, Mass. Standing, Ethel Kennedy, from left, wife of Robert Kennedy, Steven Smith and wife Jean Kennedy Smith, Robert Kennedy, Patricia Kennedy Lawford, Sargent Shriver, Joan Kennedy, wife of Edward Kennedy, and Peter Lawford, and in foreground, Eunice Kennedy Shriver, from left, Joseph P. Kennedy and wife Rose Kennedy, seated in front, Jacqueline Kennedy, and Edward Kennedy. (AP Photo, File)

FILE - Robert F. Kennedy, 38-year-old American attorney general and brother of the late U.S. President, John F. Kennedy, is accompanied by his wife Ethel, leaving the U.S. Embassy for the airport in London, Jan. 25, 1964, to fly to Derbyshire to visit the grave of his sister who died in 1947 in a plane crash. (AP Photo/Laurence Harris, File)

FILE - Attorney General Robert F. Kennedy, right, wife Ethel Kennedy, and children, from left, Bobby, Joseph, and Kathleen, second right, pose at Kennedy International Airport in New York, July 1, 1964, shortly after they returned from a one-week trip to West Germany and Poland. (AP Photo/Matty Zimmerman, File)

FILE - Ethel Kennedy shakes hands with Martin Luther King III after she and her husband Robert F. Kennedy, center, visited his mother Coretta Scott King, at her Atlanta home, April 8, 1968. Another of the slain civil rights leader Martin Luther King Jr's sons, Dexter, is at left. (AP Photo, File)

A Barnstable Police truck is stationed at the entrance to Marchant Ave. at the entrance to the Kennedy compound, Thursday, Oct. 10, 2024, in Hyannis, Mass., to provide security following the announcement of the death of Ethel Kennedy, whose home is at background right. (Steve Heaslip/Cape Cod Times via AP)

FILE - Ethel Kennedy, left, subject of the HBO documentary "Ethel," poses for a portrait with her daughter Rory Kennedy, the director of the film, Wednesday, Aug. 1, 2012 in Beverly Hills, Calif. (Photo by Chris Pizzello/Invision/AP, File)

FILE - From left, Robert F. Kennedy Jr., Ethel Kennedy, Kerry Kennedy, and Mariah Kennedy Cuomo attend the Ripple of Hope Awards, Dec. 11, 2013, in New York. (Photo by Charles Sykes/Invision/AP, File)

FILE - Atty. Gen. Robert F. Kennedy, front, waves with his wife, Ethel Kennedy, right, shortly after announcing he will seek the Democratic nomination for the U.S. senate from New York at Gracie Mansion, the official residence of New York Mayor Robert Wagner, in New York, Aug. 25, 1964. (AP Photo, File)

FILE - Ethel Kennedy holds her new son, Douglas Harriman Kennedy, with two-year-old Christopher Kennedy, right, as they leave Georgetown University in Washington, April 13, 1967, for home. (AP Photo/Henry Burroughs, File)

FILE - Sen. Robert Kennedy poses with his wife Ethel outside the Senate Chamber on Oct. 13, 1965, in Washington. (AP Photo, File)

FILE - Mrs. Ethel Kennedy, from left, with children Courtney, 3, Kathleen, 8, Joseph Patrick, 7, Bobby, 5, husband Robert F. Kennedy, with one and a half-year-old Michael on his back, and David, 4, take a walk at the Kennedy home in McLean, Va., on Dec. 30, 1959. (AP Photo/Henry Griffin, File)

FILE - Egyptian human rights attorney and women's rights activist Ragia Omran, center, gets a kiss on the cheek from Robert F. Kennedy Center President Kerry Kennedy, right, accompanied by Ethel Kennedy, left, during the presentation of the RFK Human Rights Award, Nov. 21, 2013, on Capitol Hill in Washington. (AP Photo/Susan Walsh, File)

FILE - Navy Secretary Ray Mabus smiles with Ethel Kennedy, widow of Sen. Robert F. Kennedy, at the naming of the Robert F. Kennedy Navy Ship at the John F. Kennedy Presidential Library, Tuesday, Sept. 20, 2016, in Boston. Ships in this class are being named in honor of civil and human rights heroes. (AP Photo/Elise Amendola, File)

FILE - Sen. Edward Kennedy, from left, first lady Hillary Rodham Clinton, President Bill Clinton and Ethel Kennedy, right, listen to a remembrance delivered by Rep. Joseph P. Kennedy II during a memorial Mass in honor of Robert F. Kennedy on the 25th anniversary of his death at the Arlington National Cemetery in Arlington, Va., June 7, 1993. (AP Photo/Marcy Nighswander, File)

FILE - U.S. Senator-elect Robert F. Kennedy is shown with his wife Ethel boarding plane, Nov. 4, 1964, in New York City at LaGuardia Airport for flight to Glens Falls, N.Y. (AP Photo/File)

FILE - Mrs. Ethel Kennedy, widow of former Sen. Robert F. Kennedy at the wedding of Maria Shriver Schwarzenegger at St. Francis Xavier church on April 26, 1986, in Hyannis, Mass. (AP Photo, File)

FILE - President Barack Obama awards Ethel Kennedy the Presidential Medal of Freedom, Monday, Nov. 24, 2014, during a ceremony in the East Room of the White House in Washington. (AP Photo/Jacquelyn Martin, File)

FILE - Sen. Edward Kennedy, back, stands behind the widow of former Senator Robert F. Kennedy, Mrs. Ethel Kennedy, second left, with her five children, and his wife Joan, right, as they pause at the grave of assassinated President John F. Kennedy in Arlington National Cemetery, Nov. 20, 1970, in Arlington, Va. (AP Photo/Bob Daugherty, File)

FILE - Mrs. Ethel Kennedy is escorted by her brother-in-law, Senator Edward Kennedy, to their pew in St. Patrick's Cathedral in New York for the funeral services of Sen. Robert F. Kennedy, June 8, 1968. (AP Photo/File)

FILE - Ethel Kennedy holds hands with grandson Joseph P. Kennedy III, left, while Navy Secretary Ray Mabus chats with her daughter Kathleen Kennedy Townsend, as they pose near a rendering of the Robert F. Kennedy Navy Ship named at the John F. Kennedy Presidential Library, Tuesday, Sept. 20, 2016, in Boston. (AP Photo/Elise Amendola, File)

FILE - Mrs. Ethel Kennedy gives a kiss to her brother-in-law, President-elect John Kennedy, at his Georgetown home, Nov. 27, 1960, in Washington. (AP Photo/Henry Griffin, File)

FILE - From left, Dolores Huerta, labor leader and civil rights activist, Ethel Kennedy, and civil rights leader Rep. John Lewis, D-Ga., are applauded during the Robert F. Kennedy Human Rights Award ceremony on Capitol Hill in Washington, Tuesday, June 5, 2018. (AP Photo/J. Scott Applewhite, File)

FILE - Ethel Kennedy, left, and her daughter Kerry Kennedy attend the Robert F. Kennedy Ripple of Hope Award ceremony, Tuesday, Dec. 16, 2014, in New York. (AP Photo/Jason DeCrow, File)

FILE - Ethel Kennedy, widow of Sen. Robert Kennedy, ice skates with youngsters from Bedford Stuyvesant, Brooklyn borough, at the eighth annual Kennedy skating party originated by the late senator at Rockefeller Center's skating rink on Dec. 16, 1972, in New York. (AP Photo, File)

FILE - Ethel Kennedy, widow of the late Sen. Robert F. Kennedy, is shown at the Robert Kennedy Tennis Tournament in Forest Hills, N.Y., on Aug. 24, 1974. (AP Photo/Suzanne Vlamis, File)

FILE - Mrs. Ethel Kennedy, center, wife of the late Sen. Robert F. Kennedy, stands with her sister-in-law, Mrs. Jacqueline Kennedy Onassis, and brother-in-law Senator Edward Kennedy, at the Robert F. Kennedy Pro-Celebrity Tennis Tournament at New York's Forest Hills Stadium in Queens County, on Aug. 23, 1975. (AP Photo/Suzanne Vlamis, File)

FILE - Members of the Kennedy family kneel at the grave site of the late President John F. Kennedy at Arlington National Cemetery after they visited the grave of the late Robert F. Kennedy nearby, on the anniversary of his death 16 years ago, June 6, 1984. From left: Emily and Robert F. Kennedy, Jr.; Chris Kennedy; Ethel Kennedy; Michael Kennedy and Kathleen Kennedy, the wife and children of Robert Kennedy. Sen. Edward M. Kennedy (D-Mass.) stands at back. (AP Photo/Barry Thumma, File)

FILE - Ethel Kennedy, wife of the late Sen. Robert F. Kennedy, is shown July 27, 1970. (AP Photo/File)

FILE - Ethel Kennedy, widow of Robert F. Kennedy, and her children pray over the grave of Robert F. Kennedy at the Arlington National Cemetery, April 26, 1984, in Arlington, Va. (AP Photo, File)

FILE - Ethel Kennedy, from the film "Ethel," poses for a portrait during the 2012 Sundance Film Festival on Sunday, Jan. 22, 2012, in Park City, Utah. (AP Photo/Victoria Will, File)

FILE - Mrs. Robert F. Kennedy, left, and Jean Kennedy, sister-in-law and sister, respectively of Patricia Kennedy, enter the Roman Catholic Church of St. Thomas More in New York, April 24, 1954, to attend Patricias wedding to actor Peter Lawford. Ethel Kennedy is at left. (AP Photo/Matty Zimmerman, File)