But he then lowered his voice and responded, "No".
Al Jazeera's Kimberly Halkett, reporting from the White House, saidTrump "was sticking to the script" in his comments on Tuesday - a rare occurrence. When tensions are higher than they've ever been - including the Bay of Pigs - when tensions are higher between the USA and Russian Federation than ever before, I'm not going to stand next to the man and call him a liar to his face because it would undo all of the great progress we had just made.
But Mrs Sanders rejected that interpretation later in a news briefing, telling reporters the White House was taking action to prevent any future meddling. "Do I believe that? No".
And Republican Senator Rob Portman said he was glad the President had clarified his comments.
The president's Twitter statement came after he said he accepted the USA intelligence community's conclusion that Russian Federation meddled in the 2016 presidential election.
The White House confirmed that Putin spoke with Trump at their summit in Helsinki about questioning former US ambassador to Russia Michael McFaul and financier Bill Browder - and declined to rule out USA cooperation in such an effort. "I take a back seat on no one on pressing this administration for some of the worst things that I've seen happen in public as it relates to our country".
"The president's under the impression - and I don't know why, still - that if he says the Russians hacked, it makes his election look illegitimate", said Brian Kilmeade, another cohost of Trump's favorite cable-news show, "Fox & Friends".
Trump said he had been "very strong on the fact that we can't have meddling, we can't have any of that".
Asked then if he thinks Putin is lying to him, Trump said: "I don't want to get into whether or not he's lying". "I can only say that I do have confidence in our intel agencies as now constituted".
Trump claimed he had accidentally misspoken when saying he believed Putin's denial that Russian Federation had meddled in the 2016 presidential election over his own security services.
"I accept our intelligence community's conclusion that Russia's meddling in the 2016 election took place", Trump conceded Tuesday.
Trump, meanwhile, lamented that there was no media coverage during his one-on-one talks with Putin at the Presidential Palace in Helsinki that lasted over two hours.
Under pressure from his own party, Trump walked back his comments on Tuesday.
But he again repeated his claim that there was no collusion between his presidential campaign and Russian Federation and suggested that others may have interfered in the election. Could be other people also.
Despite a televised interview and numerous postings to Twitter, Trump did not correct himself until 27 hours later.
His remarks came during a meeting with vice president Mike Pence, treasury secretary Steven Mnuchin and several members of Congress.
He also accused past American leaders, rather than Russia's destabilizing actions in the US and around the world, for the souring of relations between two countries. "Sort of a double negative".
"I believe the Senate Foreign Relations Committee should hold a hearing with the American interpreter who was present during President Trump and President Putin's private meeting to determine what was specifically discussed and agreed to on the United States' behalf", Shaheen said.
Cyber Monday 2017 – The top sellers in electronics this year
Apple’s 9.7-inch Wi-Fi enabled iPad Pro was also still a great seller thanks to massive price discounts from retailers. Microsoft dropped their game changing console update, the Microsoft Xbox One X with a 1TB hard drive and 4K compatibility.