"The damage inflicted by President Trump's naivete, egotism, false equivalence, and sympathy for autocrats is hard to calculate".
He added: "No prior president has ever abased himself more abjectly before a tyrant".
Trump spoke of the 2016 electoral college map and of online conspiracy theories created to undermine an ongoing investigation into Russia's role in the race, questioning why law enforcement failed to seize Democratic National Committee servers that were hacked by Russian military intelligence officers and whether it was that organization - not his campaign - that had conspired with Moscow to lose the election.
He added that the Kremlin doesn't have the means to surveil everyone that comes to the Russian Federation.
Standing alongside Putin, Trump steered clear of any confrontation with the Russian, going so far as to question American intelligence and last week's federal indictments that accused 12 Russians of hacking into Democratic email accounts to hurt Hillary Clinton in 2016. Gabuev said Putin ably won over his domestic audiences, notably by pushing back at accusations of Russian election meddling with his own accusations against the U.S. "I really believe that", Trump said, vowing the summit was "only the beginning".
Vladimir Putin dismissed allegations that his government meddled in the 2016 United States presidential election as "utterly ridiculous", and denied suggestions that Russian Federation had compromising information on Donald Trump.
Former CIA Director John Brennan, who served under President Barack Obama, called Trump's words "nothing short of treasonous".
"I have great confidence in my intelligence people".
But the U.S. president said Mr Putin was "incredibly strong and powerful today" in his contention that Russian Federation had nothing to do with election interference.
"Putin offered to allow American investigators to interview the 12 Russian intelligence agents just indicted by Special Counsel Robert Mueller in exchange for allowing Russians to have access to me and those close to me. I think we have all been foolish".
"And my question is: do you find President Trump easy to deal with?" the Fox News host asked.
At a time when the world really needed Mr Trump, as the leader of the free world, to stand up to his controversial counterpart, he couldn't say one critical word about Russian Federation on any of the issues that have brought relations between Washington and Moscow to a post-Cold War low.
"[Russia] remains hostile to our most basic values and ideals".
With this tension, Tchantouridze says Americans should not be too anxious but he says do keep in mind that most of Russia's intercontinental ballistic missiles target the Northeast, as they see it as a seat of power for the country. After his electoral victory, which caught even Trump by surprise, the president reluctantly acknowledged Russian meddling in the election - the unanimous consensus of the intelligence community - while in the same breath suggesting other countries could be responsible.
"This is shameful", said Senator Jeff Flake, a fellow Republican and staunch critic of the president.
Trump again denied any collusion between his campaign and the Kremlin, while Putin insisted: "The Russian state has never interfered and is not planning to interfere in the USA's internal affairs".
So Colbert got out the calculator that's been a fixture since his Colbert Report days and used his knuckles to calculate it for McCain, coming up with "treason".
Democratic California Representative Jimmy Gomez charged: "To side with Putin over United States intelligence is disgusting; to fail to defend the U.S. is on the verge of treason".
Putin said allegations that Russian intelligence agencies had collected compromising information on Trump were "sheer nonsense".
If that is anathema to many in Washington, Trump's apparent concessions to Putin over the election controversy drew stinging condemnation from across the political divide. "Amazingly, Trump stood next to him, appearing to nod approvingly", Browder wrote in an opinion piece published by Time.