In a display of unity at a time of deepening political, racial and religious divisions, he instead requested former presidents George W Bush and Barak Obama - the Republican and Democrat who beat him in his two runs for the White House - to deliver his eulogy. The receiver is set to speak before former Vice President Joe Biden. His funeral will be held Sunday at the U.S. Naval Academy in Annapolis, Maryland. He represented Arizona and the United States with class and dignity.
Republican Sen. Lamar Alexander of Tennessee said McCain deserves "a significant memorial" in the nation's capital, adding that the office building where McCain worked and where the Armed Services Committee is housed may be where a memorial should be located. And between McCain's death and Sen. In October 1967, the then US Navy pilot McCain parachuted out of his Skyhawk jet to be taken prisoner and spend more than five years as a prisoner of war.
Trump eventually spoke about the senator while meeting with evangelical leaders at the White House on Monday night. The White House had lowered its flag to half-staff on Sunday, but shortly after midnight, it was back at full staff, in a clear break with precedent - which dictates that it be lowered until burial - and the USA flag code.
Speaking to reporters Monday morning about a trade deal with Mexico, Trump chose to ignore questions concerning McCain, ABC News reports.
Flags flying a half-staff in honor of Sen.
"We were tapping on the wall to find out who's over there, and the next thing I know I'm tapping to John McCain".
Finally, under pressure from veterans and members of Congress, Trump said in a statement later on Monday that he respected McCain's service to the nation and had ordered flags to half-staff.
Under Arizona law, Gov. Doug Ducey (a Republican) must appoint a temporary replacement for McCain-although Ducey has said he won't be making a decision until after the funeral.
John McCain emphasized the importance of unity among Americans and urged the country to not "despair of our present difficulties" in a farewell message prepared before his death. Trump, when he returned to Washington, altered his stance, but nearly daily assails the investigation into the election interference.
Trump and McCain did not get along. "But it is clear that the summit in Helsinki was a tragic mistake".
Videos posted on Twitter show the president ignoring journalists' invitations to pay tribute to Mr McCain.
Since McCain's passing, there have been many tributes, including from the cast of SNL, and a notable lack of tributes from Donald Trump's White House.
Outside the United States, world leaders lauded McCain's role and presence overseas.
Republican Sen. Chuck Grassley of Iowa, who served with McCain for 31 years, says he's in favor of "naming nearly any building" for McCain, but adds, "I'm not sure that I would make a decision on a specific building at this point". "He devoted his entire life to his country".