When Fox News host Bret Baier, who substituted for Chris Wallace on "Fox News Sunday", asked Gowdy if he was "equally adamant" that Trump did not collude with Russian Federation to sway the 2016 US presidential election in his favor, the lawmaker replied, "I have not seen one scintilla of evidence that this president colluded, conspired, confederated with Russian Federation".
US President Donald Trump (L) and Russian President Vladimir Putin are pictured ahead of their meeting in Helsinki, on 16 July 2018.
House Speaker Nancy Pelosi said in a statement: "Despite President Trump's repeated claims, these documents provide clear evidence of 'Russia's coordination with Carter Page, ' a high-ranking Trump campaign official, 'to undermine and improperly and illegally influence the 2016 US presidential election'".
The FBI on Saturday released a redacted version of its previously classified foreign surveillance warrant application on Trump campaign foreign policy adviser Carter Page, which has been the subject of a heated partisan debate over the FBI's tactics investigating members of the Trump campaign.
On Sunday morning, Trump described the surveillance on Twitter as being illegal.
Mr Trump made the claim in a series of tweets where he also took aim at defeated Democrat candidate Hillary Clinton and the Democratic National Committee, her party's governing body, saying the surveillance was "for the political gain of Crooked Hillary Clinton and the DNC".
But lawmakers from both political parties said that the documents don't show wrongdoing and that they even appear to undermine some previous claims by top Republicans on the basis for obtaining a warrant against Page.More news: Syrian government targets rebels near Israel-occupied Golan
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But the documents make clear that Steele was one source for the Federal Bureau of Investigation.
One of Donald Trump's ex-foreign policy aides says allegations that he worked with the Russian government during the 2016 U.S. election are a "complete joke".
"And let's remember that application and those renewals have been vindicated in substantial part by Carter Page's own words in the letter I think you asked him about, and in which Carter Page acknowledged being an informal adviser to the Kremlin".
Page has denied being a Russian agent. The surveillance court granted the Justice Department permission to extend its surveillance of Page three times in 2017.
As reported by Fox News, "the documents show that the infamous Steele Dossier was a major component of the 2016 surveillance warrant. If you were really tough with Putin, he would not be doing what he is doing", Graham said. The Justice Department alleges in the documents that the former adviser "has established relationships with Russian government officials, including Russian intelligence officers" and that the "FBI believes the Russian government's efforts to influence the 2016 USA presidential election were being coordinated with Page and perhaps other individuals associated with [Trump's] campaign".
Mr Page is an energy industry consultant with longstanding ties to Russian Federation.
"We have no idea what this president, our president, agreed to", Schiff said on ABC News's "This Week".
Trump is seen on Sunday returning to DC after spending the weekend in New Jersey.