"The two-year hysteria over some kind of Russian interference in elections -- which never happened -- does not only damage bilateral relations but makes a mockery of the whole political system in the US," foreign ministry spokeswoman Maria Zakharova told journalists.

US Senior intelligence officials claimed that Russia efforts to interfere in the 2018 midterm elections.

“We continue to see a pervasive messaging campaign by Russia to try to weaken and divide the United States,” Director of National Intelligence Dan Coats told reporters at a briefing Thursday.

Mr. Coats said Mr. Trump had directed intelligence agencies to make election hacking a “top priority.”

He added the U.S. is “doing everything we can to have a legitimate election that the American people can have trust in.”

U.S. intelligence agencies have concluded that Russia undertook a broad effort to interfere in the 2016 election, directed at the highest levels of its government. Tactics included hacking state election systems; infiltrating and leaking information from party committees and political strategists; and disseminating through social media and other outlets negative stories about Democratic nominee Hillary Clinton and positive ones about Mr. Trump.

Russia has denied interfering in the 2016 election, and the president has repeatedly expressed skepticism about the intelligence agencies’ conclusion. He has called the special counsel investigation into election interference a “witch hunt,” and has denied that members of his campaign colluded with Moscow. On Wednesday, Mr. Trump called for Attorney General Jeff Sessions to shut down the investigation, calling it “rigged” and a “disgrace.”