US President Donald Trump has said he accepts US intelligence agencies' conclusion that Russia interfered in the 2016 election - despite declining to do so just a day ago
The original comments, after he met Russian President Vladimir Putin in Helsinki, drew a barrage of criticism.
Even some of Mr Trump's allies had urged him to clarify his stance.
In his latest remarks, he added he had "full faith and support" in US intelligence agencies.
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What he said then...
The controversy centres on a response he gave to a question at a news conference on Monday following the summit with Mr Putin.
This is an extract from the transcript posted by the White House.
REPORTER: President Putin denied having anything to do with the election interference in 2016. Every US intelligence agency has concluded that Russia did. My first question for you, sir, is, who do you believe?
TRUMP: My people came to me... they said they think it's Russia. I have President Putin; he just said it's not Russia. I will say this: I don't see any reason why it would be.
.... what he says now
Mr Trump said he had reviewed the transcript and realised he needed to clarify.
"In a key sentence in my remarks, I said the word 'would' instead of 'wouldn't," he said.
"The sentence should have been: 'I don't see any reason why I wouldn't' or 'why it wouldn't be Russia'. Sort of a double negative."
The US president added: "I accept our intelligence community's conclusion that Russia's meddling in the 2016 election took place. Could be other people also. A lot of people out there."
Mr Trump said that the interference had had no impact on the election, in which he defeated Hillary Clinton.
However, he did not respond when reporters asked him if he would condemn Mr Putin.
Why the outrage?
Republicans and Democrats alike were dumbfounded that Mr Trump sided with Russia over his own intelligence officials after Monday's summit.
The US and Russia have been long-term adversaries, and remain far apart on major issues. Some lawmakers were also upset that he refused to offer specific criticisms of Russia and Mr Putin,
Even one of his most loyal Republican supporters, Newt Gingrich, said the comments were the "most serious mistake of his presidency".
After the reversal, Senate Democratic leader Chuck Schumer accused the US president of cowardice.
Credit: The BBC