Several employees believed that the White House's official statement, which was undergoing an internal approval process, would be released at the time of the death of the Arizona Republican, which took place on Saturday. But when the president spent Sunday on his golf course in Virginia, the statement never failed, the source said.
The White House advisors had no plans for a televised declaration on McCain's death, which would have been routine under similar circumstances in recent presidencies.
The Washington Post reported on Sunday that Trump went against the advice of senior aides to publish an official statement from the White House in which he praised McCain for his heroism and decades of service. He told helpers he wanted to write a short tweet instead.
Trump's tweeting Saturday night did not mention his military or Senate service or included a commendation for the late Arizona Republican.
Another source familiar with the matter also confirmed to CNN that there were plans to go beyond the Twitter post published by the President.
The Post, which cited current and former White House assistants who had requested anonymity to discuss sensitive internal consultations, said White House chief John Kelly, press secretary Sarah Sanders, and other staff members are releasing an official Claiming McCain a "hero" and praising him for his comprehensive service to the country.
Trump and McCain had a strained relationship, and McCain was one of the government's most vocal Republican critics.
As a presidential candidate, Trump ̵
"I like people who have not been caught," Trump said Trump later acknowledged that McCain was a hero, but refused to apologize in later interviews.  In May, CNN reported that McCain Trump was at his I did not want a funeral.
And Trump's re-election campaign also released a statement that expressed condolences and urged Americans to remember McCain and his family – words that did not expressly praise the senator.
Tributes to McCain continued to pour in from former US presidents, members of Congress and foreign leaders, while Trump golfed on Sunday. His Twitter feed was largely silent, with the exception of retweets of his own contributions, in which he criticized the investigation of Russian electoral intervention and bragged about the growing economy.