"It was a conspiracy to subvert the process, and take aim at democracy itself", said Paul Ryan, Republican Speaker of the House of Representatives.
The myth that is driving Robert Mueller's collusion investigation was being pushed by the Clinton campaign and the Obama White House in the immediate aftermath of the election.
More than a dozen people were wounded in the deadliest shooting at a U.S. high school.
In announcing the indictments, Deputy Attorney General Rod Rosenstein said there was "no allegations in this indictment" that any American was a "knowing participant" in the Russian scheme - leading Trump to declare that this vindicated his campaign team.
McLaughlin, whom Trump employed as a pollster during the 2016 election and has a history of making incorrect predictions, published poll results for a Generic Ballot on February 12 through company McLaughlin & Associates.
Trump was continuing his efforts to pin Russian collusion on the Democrats and their nominee Hillary Clinton.
Russian Foreign Ministry spokeswoman Maria Zakharova denounced the allegations as "absurd" and ridiculed the notion that so few Russian nationals could undermine US democracy.
"13 against the billions' budgets of the secret services?" she asked in a Facebook post.
Trump seized on these comments, using them to continue his attempt to discredit the news media's efforts to report on a Kremlin-linked campaign to influence the 2016 USA presidential election and sow discord in its aftermath.
"You may publish anything you want to".
"Until we see the facts, everything else is just blabber".
This week in the Russian Federation investigations: A major new indictment from the special counsel's office that charges thirteen individuals and three companies and shakes up the political rhetoric as new facts are revealed in the sprawling imbroglio.
While foreign meddling in US campaigns is not new, the indictment for an effort of this scope and digital sophistication is unprecedented. In November 2016, Trump won a surprise victory over Democratic Party candidate Clinton. But pundits who use the Russian meddling story to try and "prove" something about the election outcome are talking through their hats. The goal was to create chaos inside the USA political process.
Trump appeared to be referring to an interview Schiff did with NBC in which he said the previous administration should have set up a "more forceful deterrent" against foreign adversaries considering cyberattacks. Trump's schedule for the week, released Sunday, includes a "listening session" with high school students and teachers, though the White House did not immediately provide any information on who would be attending Wednesday's meeting.
"Very sad that the Federal Bureau of Investigation missed all of the many signals sent out by the Florida school shooter".
Meanwhile, new questions mount about what his administration is doing to prevent Russian Federation from doing it again.
Facebook admitted a year ago that Russian fake news campaigning saw 80,000 dodgy posts seen by up to 126million Americans. They purchased space on computer servers located within the United States to use virtual private networks to mask their identities and pose as Americans.
After some pushback on its his initial tweets, Goldman followed up with a tweet to indicate that he was "only speaking here about the Russian behavior on Facebook".
"If this is information warfare, I think he's the first draft dodger in the war", Podesta said. "Any Russians in the audience?"
Facebook said in a statement it had previously disclosed the Internet Research Agency's activity on its platform.
In yet another tweet, he said: "Obama was President, knew of the threat, and did nothing". But Mr Trump also said he believed Mr Putin is honest when he says Russian Federation did not interfere.