Residents and USA officials laid flowers near a concrete sculpture of McCain by the capital's Truc Bach lake, commemorating the site where the former Navy pilot - who died Saturday aged 81 - was shot down and detained during the Vietnam War.
Pham Gia Minh, a 62-year-old businessman who signed the condolence book at the embassy, said he witnessed Vietnamese civilians being killed by the U.S bombings of North Vietnam, including on Christmas in Hanoi in 1972, but he admired McCain for overcoming the hard past to build better ties between the two countries.
It will conclude almost a week of events honouring the man, whose body will lie in state on Wednesday in the Arizona State Capitol and on Friday in the Capitol Rotunda, Washington DC, with a formal ceremony and time for the public to pay respects.
The two men who defeated McCain in his White House campaigns, Republican George W. Bush and Democrat Barack Obama, are expected to deliver eulogies at a Saturday service at the National Cathedral in Washington, a day after McCain's body lies in state in the US Capitol.
"The entire focus of the McCain family is on John McCain".
Since his death on Saturday from cancer, a monument on the shores of the Hanoi lake where McCain was captured has turned into a de facto shrine.
Instead, Trump issued a brief statement on Twitter Saturday night, that did not mention any of McCain's accomplishments. Vice President Mike Pence is likely to attend, said the officials, who spoke on condition of anonymity to describe private discussions.
The 81-year-old McCain went on to die hours later, surrounded by family at his Arizona home after a battle with brain cancer.
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He has stood by players such as Simon Mignolet, Loris Karius , Alberto Moreno and Dejan Lovren through some terrible games and spells.
With bad blood between them at the boil, McCain reportedly excluded Trump from his funeral ceremonies - a development that Davis confirmed on Monday. And he was asked again later in the day when he welcomed the president of Kenya to the White House.
"They both recognized and loved each other's passion". He loved me, and I loved him.
Aides to Senate Majority Leader Mitch McConnell and Democratic Leader Charles Schumer requested that the Department of Defence keep flags at government buildings lowered until the sunset after McCain is buried in Annapolis, Maryland, next Sunday.
Walker said in a statement released Monday that he and his wife Donna are "deeply saddened" by McCain's passing.
Short said he personally considers McCain "an American hero who served our country nobly".
Gov. Ducey will name a replacement to serve until the 2020 election.
"I had the great honor and privilege of being in the presence of the late Sen".