A group of current and former U.S. officials from across the political spectrum is set to take part in Saturday's memorial service for Senator John McCain, one of the last in a string of services honoring the longtime lawmaker who died Saturday at the age of 81.
The service at the National Cathedral in Washington will feature eulogies by former Presidents Barack Obama and George W. Bush. Former Secretary of State Henry Kissinger and Former Senator Joseph Lieberman will also speak.
Serving as pallbearers will be former Vice President Joe Biden, former Defense Secretary William Cohen, former New York Mayor Michael Bloomberg, and former Senators Gary Hart, Russ Feingold and Phil Gramm.
McCain will be buried Sunday at his college alma mater, the U.S. Naval Academy in Annapolis, Maryland.
The tributes will start however in Arizona, the state he represented first in the House of Representatives for two terms beginning in 1983 before moving to the Senate in 1987. McCain will lie in state in the Arizona State Capitol on Wednesday.
Since his death, world leaders and McCain's former colleagues in Congress, Republicans and Democrats alike, have shared their favorite memories of McCain, and extolled his status as a senior statesman on the world stage. They have remembered his military service as a naval aviator, especially his valor in enduring beatings and torture during 5 1/2 years as a prisoner of war at the hands of North Vietnamese captors at the height of the Vietnam War in the 1960s.
But U.S. President Donald Trump, who frequently engaged in political taunts with McCain and three years ago said McCain was only deemed a hero because he was captured as a POW, was criticized after his initial reactions to McCain's death only expressed condolences to his family and didn't mention his military service or political career.
The White House, according to a Washington Post report Monday, prepared a statement extolling McCain's life and calling him a hero, but Trump rejected issuing it.
My deepest sympathies and respect go out to the family of Senator John McCain. Our hearts and prayers are with you!— Donald J. Trump (@realDonaldTrump) August 26, 2018
Flags at the White House were lowered to half-staff over the weekend in McCain's honor, but back at full-staff on Monday. Trump ignored reporters' repeated questions about McCain at White House gatherings on Monday, but late Monday afternoon the flags were lowered again to half-staff.
At the same time, the White House released a statement from the president in which Trump said that, despite differences on policy and politics, he respects McCain's service to the U.S. and ordered flags be flown at half-staff until his internment.
The statement also said Trump asked Vice President Mike Pence to offer an address at a ceremony honoring McCain on Friday, and that three cabinet members represent the Trump administration at services for McCain later this week.
At a dinner Monday night, Trump included a brief mention of McCain in his remarks, saying "we very much appreciate everything that Senator McCain has done for our country."
As he prepared for the end of his life, McCain said he did not want Trump at his funeral, instead favoring attendance by Pence, with whom he served in Congress.
McCain, even as he neared death, disparaged Trump's presidency, rebuking the U.S. leader for his seeming embrace of Russian President Vladimir Putin's position at last month's Helsinki summit that Russia had not meddled in the 2016 U.S. presidential election. Trump, when he returned to Washington, altered his stance, but almost daily assails the investigation into the election interference.
"The damage inflicted by President Trump's naiveté, egotism, false equivalence, and sympathy for autocrats is difficult to calculate," McCain said at the time. "But it is clear that the summit in Helsinki was a tragic mistake."
Previously, the White House posted tributes from numerous Trump officials praising McCain, who as the Republican nominee, lost the 2008 presidential election to Obama. The tributes singled out McCain's military service and heroism as a POW and his independence as a political leader.
All five living former U.S. presidents issued statements praising McCain.
Outside the United States, world leaders lauded McCain's role and presence abroad.
"John McCain was a true American hero," said French President Emmanuel Macron. "He devoted his entire life to his country. His voice will be missed. Our respectful thoughts go to his beloved ones."
British Prime Minister Theresa May said McCain "embodied the idea of service over self."
McCain for years has promoted closer ties between Vietnam, which imprisoned him, and the United States.
WATCH: John McCain obit
?On Monday, Vietnam Foreign Minister Pham Binh Minh wrote in a condolence book at the U.S. Embassy in Hanoi, "It was he who took the lead in significantly healing the wounds of war, and normalizing and promoting the comprehensive Vietnam-U.S. partnership."
A monument to McCain on the shores of the Hanoi lake where was he was captured after his plane was shot down in 1967 has turned into a de facto shrine to him as news of his death reached Vietnam. Flowers, incense, flags and other tributes to McCain have been laid there.