"On this particular issue, whether or not Russian Federation sought to meddle in the US election successfully or not, most people believe they did", Baker told State House News Service.
Pomeranz said Trump had done himself political damage by suggesting both sides were to blame for the Russian Federation probe that has hurt US relations with Moscow - just as Trump did when he blamed both sides when responding to violent white supremacist protests in Charlottesville, Virginia.
"As an American, I have to say I believe our own defense and intelligence agencies much more than the President of Russia", Bredesen said.
"Putin and I discussed many important subjects at our earlier meeting".
Some Trump critics called on his key national security aides to quit in the face of the president saying that he had "confidence" in both Putin and the US intelligence community. Pelosi also wondered whether they actually signaled a change in the president's approach to Russia's leader.
Mr Trump's change of heart came after Barack Obama delivered an excoriating attack on his successor and senior Republicans blasted Mr Trump's performance in Finland as weak and even treasonous.
Mr Wilson said as things stand, Republicans will be sticking with Mr Trump as their 2020 presidential candidate despite their differences with their leader.
At the summit in Helsinki, Mr Trump appeared to unquestioningly accept the Russian president's "strong and powerful" denials of meddling in the election.
'It should have been obvious, I thought it would have been obvious, but I would like to clarify just in case it wasn't. Republican Senate Leader Mitch McConnell and House of Representatives Speaker Paul Ryan called Russia's government "menacing" and said they could consider additional sanctions on Russian Federation.
Flake said Tuesday the President threw "basically the whole country under the bus" with his comments and called it disgraceful and "shameful".
"We will stop it, we will repel it", Trump vowed.
But he also said that "other people" could have been involved, a statement echoing past remarks casting doubt on Russia's role.
He said the sentence should have been, "I don't see any reason why it wouldn't be Russian Federation", rather than, "I don't see any reason why it would be Russian Federation".
Senate Democratic leader Chuck Schumer said Trump's comments on Tuesday were another sign of weakness, particularly his statement that it "could be other people" responsible for the election meddling.