Pointing to the indictment last week of 12 GRU agents, the former attorney general also suggested that Putin wanted US intelligence services to discover Russian meddling in the election - and that if he really wanted agents from Moscow to go undetected he would have used a far more capable source than the former Russian "special-forces types" that make up GRU.
"Details from the private Trump-Putin talks in Helsinki will spill out in coming days, but Monday's joint press conference was a personal and national embarrassment", the conservative newspaper said in a scathing editorial. "I think he's a very bad person". "It's the thing that he told me, he said: 'What a shame.' He felt it was very hard for me to make a deal because of all this nonsense".
While insisting that the Russian interference had no impact on the outcome of the election, he said that he accepts "our intelligence community conclusion that Russia's meddling in the 2016 election took place".
"My people came to me, [Director of National Intelligence] Dan Coates, came to me and some others they said they think it's Russia", Trump said.
In a statement today Mr Trump said he meant to say "I don't see any reason why it wouldn't be Russia".
"You've only got to look at the International Monetary Fund to see they regard the American tax cuts as being very pro-growth", he said.
Trump said the summit with Putin still "was our most successful visit" on his European trip. Putin is a thug & his actions against our democracy are despicable.
Trump questions US intel, not Putin, on Russia 2016 meddling
Talking to the media before the one-on-one summit with Putin, Trump did not mention Russia's meddling in the USA election. Mr Putin said he and Mr Trump have agreed to continue detailed discussions on arms control issues.
"I thought we were doing horribly before today", the president said. "And we have every reason to believe Vladimir Putin will do so again". "We could find common ground to turn the screws on Russian Federation", he said.
USA intelligence agencies concluded a year ago that the Russian government interfered in the 2016 election campaign and sought to tilt the vote in Trump's favor, something Moscow has long denied.
"President Putin just said it's not Russia", Trump said.
"We have been clear in our assessments of Russian meddling", Coats said in a statement.
Although he faced pressure from critics, allied countries and even his own staff to take a tough line, Trump spoke not a single disparaging word in public about Moscow on any of the issues that have brought relations between the two nuclear powers to the lowest ebb since the Cold War. Russia's political and media establishment heralded the summit as a victory for Putin in breaking down Western resolve to treat Russian Federation as a pariah. Trump initially supported it, but then reversed himself.
Some lawmakers had also called on Trump to reiterate the USA position opposing Russia's 2014 annexation of Crimea.
Mr Trump was speaking after returning from the Helsinki summit to widespread anger over his performance during a news conference with Vladimir Putin. Browder was a driving force behind a US law targeting Russian officials over human rights abuses. "Always have", Trump said.