In this Nov. 16, 2006, file photo, Sen. John McCain, R-Ariz., pauses while speaking to the GOPAC Fall Charter Meeting in Washington. The former POW, longtime senator and one-time presidential candidate died Saturday after battling brain cancer. Associated Press/J. Scott Applewhite
Sen. John McCain, R-Ariz., speaks to reporters on Capitol Hill in Washington on July 27, 2017, after the Senate voted decisively to approve a new package of stiff financial sanctions against Russia, Iran and North Korea. McCain died Saturday after battling brain cancer.
U.S. Naval Lt. Cmdr. John S. McCain III, son of the Navy's commander-in-chief in Europe and grandson of one of the Navy's greatest World War II carrier commanders, is show in July 1967, in Vietnam.
John McCain is administered to in a Hanoi, Vietnam, hospital as a prisoner of war in the fall of 1967. McCain spent 20 years in the Navy, a quarter of it in a Vietnamese prisoner of war camp after his jet was shot down over Hanoi during a bombing mission on Oct. 26, 1967.
John S. McCain III is escorted by Lt. Cmdr. Jay Coupe Jr., a public relations officer, on March 14, 1973, to Hanoi's Gia Lam Airport after being released as a prisoner of war.
Lt. Commander John S. McCain III, waves to well-wishers on March 18, 1973, after arriving at Jacksonville Naval Air Station in Florida. He was recently released after being held as a POW for over five years. At left is his wife, Cindy, and his son Doug, who was using crutches after breaking his leg in a soccer game. McCain was the son of Adm. John S. McCain Jr., who commanded the U.S. Forces in the Pacific until his retirement.
U.S. Navy Cmdr. John S. McCain III, a guest of the South Vietnamese government, visits the Holt orphanage in Saigon, Vietnam, on Oct. 30, 1974. The institution cared for many youngsters fathered by American GIs.
U.S. Rep. John McCain III, R-Ariz., holds a photo of a marker in Hanoi at Truc Bach Lake, where he parachuted after being shot down as a Navy pilot in the Vietnam War. McCain, who was a POW for five and a half years in Hanoi, is shown in Bangkok, Thailand, on Feb. 18, 1985, en route to Hanoi to visit this site.
Republican presidential candidate Sen. John McCain smiles as Sen. Lindsay Graham, R-S.C., introduces him at a campaign rally in Mesilla, N.M., on Oct. 25, 2008.
Cindy McCain, wife of Republican presidential hopeful Sen. John McCain, R-Ariz., uses a cheetah hand puppet to make her husband laugh as they ride the "Straight Talk Express" campaign bus to a polling station on the day of South Carolina's Republican presidential primary, Jan. 19, 2008, in Charleston, S.C.
McCain is joined by Gov. Sarah Palin, R-Alaska, during a rally with supporters on election night in Phoenix, on Nov. 4, 2008. Palin was McCain's vice presidential running mate.
Presidential candidate McCain greets supporters as he enters a campaign rally at the University of Northern Iowa in Cedar Falls, Iowa, on Oct. 26, 2008.
McCain laughs prior to participating in a National Security Roundtable on Oct. 29, 2008, at The University of Tampa in Tampa, Fla.
A victorious Sen. McCain, R-Ariz., walks on stage with his wife as he waves to hundreds of supporters after his race for U.S. Senate was called against his closest challenger, Democrat Rodney Glassman, on, Nov. 2, 2010, at a Republican election night party in Phoenix.
Sen. McCain listens during remarks of the Fiscal Responsibility Summit, hosted by President Obama on Feb. 23, 2009, in the East Room of the White House in Washington.
Sen. John McCain clowns around on the podium during a sound check for the Republican National Convention in Tampa, Fla., on Aug. 29, 2012.
McCain leaves the Senate chamber at the Capitol in Washington on June 3, 2014, In a response to a furor over patient delays and cover-ups at Veterans Administration health facilities nationwide, McCain and three other Republican senators introduced a bill that would give veterans more flexibility to see a private doctor if they are forced to wait too long for an appointment at a VA hospital or clinic.
McCain leaves meeting of Senate Republicans on Sept. 19, 2017, on Capitol Hill in Washington. (AP Photo/Jacquelyn Martin)
McCain receives the Liberty Medal from former Vice President Joe Biden, chair of the National Constitution Center's board of trustees, in Philadelphia on Oct. 16, 2017. The honor is given annually to an individual who displays courage and conviction while striving to secure liberty for people worldwide.
McCain speaks to members of the media on Nov. 14, 2017, at the U.S. Capitol.
McCain leaves a closed-door session where Republican senators met on the GOP effort to overhaul the tax code on Dec. 1. 2017. McCain soon returned home to Arizona after being hospitalized over the side effects from his brain cancer treatment.
McCain makes his way to a meeting Dec. 1 in Washington about the Republican tax bill. An Achilles tendon tear in early November put him in a walking boot.