The family follows as the casket of Sen. John McCain, R-Ariz., is moved from the Chapel on the grounds of the United States Navel Academy after a service on Sunday in Annapolis, Md. The casket was carried by horse-drawn caisson to the cemetery at the Naval Academy where McCain was buried. Photo by David Hume Kennerly/McCain Family

Naval personnel attend the funeral service for the late Senator McCain at the United States Naval Academy Chapel. McCain, who graduated from the U.S. Naval Academy in 1958, was buried there next to his friend and classmate Navy Adm. Charles "Chuck" Larson. Photo by Nathan Burke/U.S. Navy

Cindy McCain, wife of Sen. John McCain, lays her head on the casket during a burial service at the cemetery. Photo by David Hume Kennerly/McCain Family

Navy Body Bearers carry the casket of the late Sen. John McCain from his funeral service at the United States Naval Academy Chapel, in Annapolis, Md. on Sunday. Photo by Nathan Burke/U.S. Navy

Navy Body Bearers place the casket onto a horse-drawn caisson after his funeral service at the United States Naval Academy Chapel. Photo by Nathan Burke/U.S. Navy

A horse-drawn caisson carries the casket containing the late Senator John McCain during his funeral service at the United States Naval Academy. Photo by Nathan Burke/U.S. Navy

Members of the McCain family pay their respects as the military honor guard team carries the casket at the National Cathedral in Washington, D.C., on Saturday. Photo Ken Cedeno/UPI

Cindy McCain, wife of former Senator John McCain, (C) and her family, exit National Cathedral following funeral services. McCain died Aug. 25 from brain cancer at his ranch in Sedona, Ariz. He was a veteran of the Vietnam War, served two terms in the U.S. House of Representatives, and long served in the U.S. Senate. McCain also ran for president twice, and was the Republican nominee in 2008. Photo Ken Cedeno/UPI

A military honor guard moves the casket containing the remains of Sen. John McCain at the end of his memorial service at the National Cathedral. Photo Kevin Dietsch/UPI

Meghan McCain delivers remarks at her father Sen. John McCain's memorial service at Washington National Cathedral. Photo Kevin Dietsch/UPI

A military honor guard moves the casket containing the remains of Senator John McCain at the end of his memorial service in Washington, D.C. Photo Kevin Dietsch/UPI

Former President Barack Obama delivers remarks at the memorial service for Senator John McCain. Photo Kevin Dietsch/UPI

Former President George W. Bush speaks at the memorial service at Washington National Cathedral. Photo Kevin Dietsch/UPI

The casket carrying the remains of Senator John McCain is seen during his memorial service. Photo Kevin Dietsch/UPI

Jared Kushner and Ivanka Trump, the son in-law and daughter of President Donald Trump, attend the memorial service. Photo Kevin Dietsch/UPI

Former President Barack Obama and former first lady Michelle Obama arrive for the memorial service. Photo Kevin Dietsch/UPI

Former President Barack Obama (L) shakes hands with Sen. Bob Corker, R-Tenn., as former President George W. Bush and former first lady Laura Bush arrive. Photo Kevin Dietsch/UPI

A military honor guard brings the casket carrying the remains of Sen. John McCain into Washington National Cathedral for his memorial service. Photo Kevin Dietsch/UPI

Cindy McCain, wife of, Sen. John McCain, R-Ariz., fourth from right, accompanied by White House Chief of Staff John Kelly, second from right, Defense Secretary Jim Mattis, second from left, and family members, arrives at the Vietnam Veterans Memorial in Washington on Saturday. McCain served as a Navy pilot during the Vietnam War and was a prisoner of war for more than five years. Also pictured is Seaman Celeb Harrington of Fresno, Calif., right. Photo by Andrew Harnik/UPI

Cindy McCain accompanied by Kelly (L) and Mattis, second from left, lays a wreath at the Vietnam Veterans Memorial during a funeral procession to carry the casket of her husband from the U.S. Capitol to National Cathedral for a Memorial Service. Photo by Andrew Harnik/UPI

Joint service members of a military casket team carry the casket of Sen. John McCain from the U.S. Capitol to a motorcade that ferried him to a funeral service. Photo by Jim Lo Scalzo

John McCain's widow Cindy McCain (C), and his sons Jack (C) and James (R) watch joint service members of a military casket team carry the casket of Sen. John McCain into the U.S. Capitol. Pool photo by Jim Lo Scalzo/UPI

A military honor guard team carries the casket of the late-Sen. John McCain, R-Ariz. into the U.S. Capitol on Friday. The late senator died August 25 at the age of 81 after a long battle with brain cancer. He lay in state at the U.S. Capitol this week, a rare honor bestowed on only 31 people in the past 166 years. Sen. McCain will be buried at his final resting place at the U.S. Naval Academy on Sunday. Pool Photo by Win McNamee/UPI

Joint service members of a military casket team carry the casket into the Capitol. Pool photo by Jim Lo Scalzo/UPI

Sen. John McCain lies in state in the Rotunda of the U.S. Capitol. Photo Kevin Dietsch/UPI

Mourners surround the casket of former Sen. John McCain, R-Ariz., in the Capitol Rotunda where he will lie in state at the U.S. Capitol on Friday. He is the 31st person to lie in state at the Capitol in 166 years. Photo by Kevin Dietsch/UPI

Cindy McCain, wife of Se. John McCain, R-Ariz., leans over the casket in the Capitol Rotunda where he will lie in state at the U.S. Capitol on Friday. He is the 31st person to lie in state at the Capitol in 166 years.. Photo by Kevin Dietsch/UPI

Cindy McCain prays by the casket. Photo by Pat Benic/UPI

Daughter Meghan McCain and Sen. John McCain's mother Roberta McCain hold hands. Photo by Pat Benic/UPI

Vice President Mike Pence speaks on the first day the casket of former Sen. John McCain in the Capitol Rotunda will lie in state at the U.S. Capitol. Photo by Kevin Dietsch/UPI

Senate Majority Leader Mitch McConnell of Ky. speaks during a ceremony for Sen. John McCain. Pool photo by Andrew Harnik/UPI

Speaker of the House Paul Ryan, R-Wis., said of McCain, "John McCain was one of the bravest souls our country ever produced." Photo by Kevin Dietsch/UPI

Ryan kisses Cindy McCain after speaking at the ceremony. Photo by Kevin Dietsch/UPI

Jimmy McCain, son of late U.S. Senator John McCain, touches his father's casket. Pool Photo by Kevin Lamarque/UPI

Son John McCain IV pays his respects as former Sen. John McCain lies in state. Photo by Pat Benic/UPI

Daughter Meghan McCain and Senator John McCain's mother Roberta McCain (L) pay their respects. Photo by Pat Benic/UPI

Former Secretary of State Henry Kissinger pays his respects by the casket. Photo by Pat Benic/UPI

Sen. Lindsey Graham, R-S.C., longtime friend of late Sen. McCain, touches his casket. Pool Photo by /Kevin Lamarque/UPI

House Minority Leader Nancy Pelosi of Calif., (L), and Rep. Sam Johnson, R-Texas, touch the casket of Sen. John McCain, R-Ariz., as he lies in state. Pool photo by Andrew Harnik/UPI

Glynn Crooks, former Chairman of the Shakopee Mdewakanton Sioux Indian Community, of Prior Lake, Minn., salutes former Sen. John McCain, R-Ariz, during memorial services at the US Capitol. Photo Ken Cedeno/UPI

Vladimir Kara-Murza (R) and his wife Yevgenia touch the casket. Pool photo by Andrew Harnik/UPI

McConnell and Senate Minority Leader Charles Schumer, D-N.Y., lay a wreath at the casket of Sen. John McCain during his memorial service. Photo Ken Cedeno/UPI

Actors Annette Bening and Warren Beatty pay their respects by the casket. Photo by Pat Benic/UPI

From left to right, Cindy McCain, son Jack McCain and son James McCain watch as a military honor guard team carries the casket of the late-Sen. John McCain, R-Ariz., into the U.S. Capitol. Pool Photo by Win McNamee/UPI

Joint service members of a military casket team carry the casket of Sen. John McCain into the US Capitol, where he will lie in state for the rest of the day. Pool photo by Jim Lo Scalzo

The casket of former Sen. John McCain is placed to lie in state at the U.S. Capitol. Photo by Pat Benic/UPI

Vice President Mike Pence and wife of Sen. John McCain, Cindy McCain, view the casket of former Sen. John McCain, R-Ariz., in the Capitol Rotunda. Photo by Kevin Dietsch/UPI

Cindy McCain holds a handkerchief during ceremonies honoring her late husband. Pool Photo by Kevin Lamarque/UPI

A crowd awaits the arrival of the casket of Sen. John McCain, R-Ariz., in the U.S. Capitol Rotunda on Friday. Pool photo by Morry Gash/UPI

Former Connecticut Sen. Joe Lieberman, (L) , and actors Warren Beatty (R) and his wife Annette Bening, second right, arrive in the Rotunda. Pool photo by Andrew Harnik/UPI

Senate Majority Leader Mitch McConnell of Ky. (R) speaks to an aide before the ceremony. Pool Photo Andrew Harnik/UPI

A POW banner hangs in the Capitol Rotunda before the casket is brought in to lie. Photo by Pat Benic/UPI

Cindy McCain watches the casket of former Sen. John McCain taken to the hearse at Andrews Air Force Base, Md. on Thursday. Photo by Tasos Katopodis/UPI

The honor guard carries the casket. Photo Tasos Katopodis/UPI

The honor guard carries the casket. Photo Tasos Katopodis/UPI

Secretary of Defense Jim Mattis (L) walks with Cindy McCain after the plane landed at Andrews Air Force Base, Md. Photo by Tasos Katopodis/UPI

An honor guard places their hands over their hearts in salute to the flag draped casket of Sen. McCain as it leaves North Phoenix Baptist Church after funeral services in Phoenix on Thursday. Photo by Art Foxall/UPI

Former Vice President Joe Biden wipes a tear while giving a {link:tribute: "https://www.upi.com/Top_News/US/2018/08/30/Joe-Biden-gives-tearful-eulogy-for-brother-John-McCain/5011535628935/?sl=19"} during a memorial service at North Phoenix Baptist Church for Sen. McCain in Phoenix. Pool Photo by Matt York/UPI

Andrew McCain, son of Sen. McCain, gives a reading during the memorial service. Pool Photo by Matt York/UPI

Bridget McCain, daughter of Sen. McCain, speaks during memorial service. Pool Photo by Matt York/UPI

The honor guard carries the casket after the service. McCain was a Vietnam War veteran who was a prisoner of war for seven years. Pool Photo by Matt York/UPI

McCain's flag-draped casket is carried into the church. Photo by Art Foxall/UPI

Jay Smith plays the bagpipe during the service. Pool Photo by Matt York/UPI

McCain friend Tommy Espinoza speaks during the service. Pool Photo by Matt York/UPI

Larry Fitzgerald, wide receiver for the Arizona Cardinals, speaks about his friendship with McCain. Pool Photo by Matt York/UPI

McCain's wife, Cindy McCain, is escorted into the church by her son, Jack McCain. Photo by Art Foxall/UPI

A motorcade led the procession to the church from the Arizona Capitol, where McCain had lain in state. Photo by Art Foxall/UPI

An honor guard with the Arizona National Guard carries Sen. John McCain's flag-draped casket into the rotunda of the Arizona State Capitol in Phoenix on Wednesday. Photo by Art Foxall/UPI

Cindy McCain (C) is escorted by her sons Jimmy (L) and Jack. Photo by Art Foxall/UPI

Members of the Arizona National Guard carry Sen. John McCain's casket into the rotunda at the Arizona Capitol on Wednesday. "Thank you for the privilege of serving you and for the rewarding life that service in uniform and in public office has allowed me to lead," McCain {link:said: "https://www.upi.com/John-McCain-says-he-died-a-proud-American-in-farewell-statement/5531535394303/"} in a farewell statement released two days after his death. Pool Photo by Ross D. Franklin/UPI

Members of the honor guard wait for McCain's casket. Photo by Art Foxall/UPI

Arizona Gov. Doug Ducey (R) and his wife, Angela, greet the casket. Photo by Art Foxall/UPI

The senator's daughter, Meghan McCain, cries over his casket during the memorial service. Pool Photo by Jae C. Hong/UPI

Cindy McCain touches the flag-draped casket. Pool Photo by Jae C. Hong/UPI

Cindy McCain stands with her sons Jack (C) and Jimmy (R) during the service. Pool Photo by Jae C. Hong/UPI

Jack McCain, son of Sen. John McCain, R-Ariz., touches the casket. Pool Photo by Ross D. Franklin/UPI

Though McCain offered praise for "the world's greatest republic," the United States, he offered a warning. "We weaken our greatness when we confuse our patriotism with tribal rivalries that have sown resentment and hatred and violence in all the corners of the globe. We weaken it when we hide behind walls, rather than tear them down, when we doubt the power of our ideals, rather than trust them to be the great force for change they have always been," the statement read. Pool Photo by Jae. C Hong/UPI

Cindy McCain wipes away a tear next to her son Jack McCain. Pool Photo by Ross D. Franklin/UPI

Cindy {link:tweeted: "https://twitter.com/cindymccain?ref_src=twsrc%5Egoogle%7Ctwcamp%5Eserp%7Ctwgr%5Eauthor"} on Saturday, "My heart is broken. I am so lucky to have lived the adventure of loving this incredible man for 38 years. He passed the way he lived, on his own terms, surrounded by the people he loved, in the the place he loved best." Pool Photo by Jae C. Hong/UPI

Cindy McCain sits with Jack, second left, Jimmy, second right, and daughter Meghan (R) during the service. Pool Photo by Ross D. Franklin/UPI

The Arizona Department of Public Safety honor guard stands over the casket. Pool Photo by Ross D. Franklin/UPI

U.S. Naval sea cadets walk past the casket. Pool Photo by Jae C. Hong/UPI

A member of the Arizona Department of Public Safety honor guard salutes the casket. Photo by Art Foxall/UPI

Former U.S. Marine Jose Cordero Torres, 82, a Vietnam war veteran, salutes near the casket. Pool Photo by Jae C. Hong/UPI

Torres leaves his commendation medal, given for "heroic or meritorious {link:achievement: "http://www.navywriter.com/navy-commendation-medal.htm"}," on the floor near the casket. Pool Photo by Jae C. Hong/UPI

A Buddhist monk stands in line to view the casket. Photo by Art Foxall/UPI

A man carries a flag as he lines up to view McCain's casket. Photo by Art Foxall/UPI