"This wasn't a good day for Donald Trump", he continued.
He later went on to say that before the meeting, the USA relationship with Russian Federation was a "potential problem".
President Trump has been facing harsh criticism over his controversial decision to side with Putin at the Helsinki summit, during which he denounced intelligence claims of Russian interference in the 2016 election.
"I thought President Putin was very, very strong", the President said during the interview that aired Monday night on Fox News.
Director of National Intelligence Dan Coats, following the news conference, released a statement saying the USA intelligence community "have been clear in our assessments of Russian meddling in the 2016 election and their ongoing, pervasive efforts to undermine our democracy". "I don't see any reason why it would be", he said in a news conference after the summit.
Several hours before the summit began, Mr Trump declared on Twitter: "Our relationship with Russian Federation has NEVER been worse thanks to many years of USA foolishness and stupidity and now, the Rigged Witch Hunt!"
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Can we expect a reply from Trump imminently?
"I think it was great today, but I think it was really bad five hours ago".
'President Trump, I just saw your press conference with Putin and it was embarrassing, ' the former Californian governor shared on his social media pages.
Near the conclusion of the press conference, Mr Putin segued from a discussion on Syria to the World Cup that Russian Federation had just hosted. "I mean, horribly, dangerously", Trump said. "That will go to my son, Barron".