But President Donald Trump, who had clashed with fellow Republican McCain over various issues and said during his campaign that the senator was "not a war hero", wavered in his approach to what presidents normally treat as a gesture of courtesy and respect.
Trump first sent a tweet that offered condolences to McCain's family but did not praise McCain.
Trump's White House lowered its flag on Saturday, then raised it back following the minimum period under law.
Schumer, who worked closely with McCain on immigration and other issues, called McCain one of the "few truly great people" he's met in public service. And we very much appreciate everything that Senator McCain has done for our country. Some of his most bitter adversaries are among those commemorating his passing.
The veteran actor and filmmaker will help to carry the coffin alongside a host of American political heavyweights, including ex-vice president Joe Biden and former mayor of New York Michael Bloomberg.
Trump later released a longer statement applauding McCain after numerous complaints from lawmakers and veterans groups. John McCain, R-Ariz. McCain was also alarmed by the rise of far-right populism in Europe, and the British break with the European Union that Trump has heralded.
"It tells me he was a man for whom honor integrity and loyalty are everything, and he lived that to the day he died", Swindle says.
"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 was a frequent Trump critic and his family has said he did not want the president to attend his funeral.
US President Donald Trump appears to have caved in to bipartisan demands to pay respects to late Sen.
A private ceremony will be held on Sunday at the U.S. Naval Academy Chapel in Annapolis, Maryland, and McCain will be buried at the U.S. Naval Academy Cemetery next to Naval Academy classmate and long-time friend, Admiral Chuck Larson. In 2008, McCain "was prepared to be president, but it was not his to have".
Arizona Gov. Doug Ducey (R) has said he will wait until after McCain's funeral Sunday to appoint a successor to serve out the remainder of the senator's term through 2020. He had once questioned the senator being called a war hero because he got captured.
The Senate should spend time finding "the right way" to memorialize McCain's service, Perdue said.
"I am going to miss these dumb jokes", he said. "You don't often see that in people who speak publicly, they don't betray that emotion".
Santorum fired back with a reference to Cuomo's older brother, Gov. Andrew Cuomo of NY, who was chastised after saying during a speech Wednesday that America "was never that great"; he later walked back the comment.