McCain, 81, died Saturday at his ranch in Arizona after a yearlong battle with brain cancer.
There will then be a procession past the Vietnam Veterans Memorial and a funeral service at Washington National Cathedral. "A life lived embodying those truths casts a long, long shadow", Former Vice President Joe Biden said in a statement Saturday night.
McCain is expected to be remembered at ceremonies in Arizona and Washington this coming week or next, if the family prefers to give more time for Congress to return to the Capitol from its summer recess.
Trump's response: McCain was a "dummy" who had barely managed to graduate from the US Naval Academy.
During his three decades in the Senate, McCain - the son and grandson of four-star admirals who graduated from the Naval Academy and served his country as a fighter pilot - was known as a staunch advocate for freedom around the world.
"Few of us have been tested the way John once was, or required to show the kind of courage that he did", Mr. Obama continued.
"Senator McCain was a great friend to Canada and a true statesman whose intelligence, tenacity and courage were unmatched", Foreign Affairs Minister Chrystia Freeland wrote on Twitter.
He said the USA veteran "showed us that boundless patriotism and self-sacrifice are not outdated concepts or cliches, but the building blocks or an extraordinary life". "And for that, we are all in his debt".
Turnbull breaks silence after ballot, confirms Peter Dutton's replacement
Nearly two-thirds (64.7%) of One Nation voters said they would be more likely to vote for the Coalition of Dutton was leader. With 35 votes to Malcolm Turnbull's 48, Dutton only needed another 7 MPs to support him in order to oust the prime minister.
Ms Ward appeared to agree, replying: "I think they wanted to have a particular narrative that they hope is negative to me".
On Saturday, the nation learned about the passing of an American hero, Senator John McCain.
Canadian Prime Minister Justin Trudeau called McCain "an American patriot and hero whose sacrifices for his country, and lifetime of public service, were an inspiration to millions". "I feel compassion for him and his family as they go through this".
The person who was previously seen as McCain's most likely successor is Arizona Rep. Martha McSally.
Trump, who received serial deferments and did not serve in the military, said that McCain was "a war hero (only) because he was captured", adding: "I like people that weren't captured".
Huckabee told Judge Jeanine Pirro of a time on the 2008 campaign trail when McCain - who was deeply interested in cooking - had to be asked to leave a Little Rock, Arkansas, barbecue restaurant in order to continue campaigning for the presidency. "We will all miss the great man that he was".
"My thoughts and prayers are with Cindy and his entire family".
McCain announced that he would instead vote for "some good conservative Republican who is qualified to be president".