This was reported by The New York Times, citing five sources.
It is clarified that at a briefing on February 13, intelligence officials announced the "ongoing campaign of Russia" to intervene in the upcoming presidential elections and the primaries of the Democratic Party.
As stated in the article, Trump fears that Democrats may use this information against him.
The day after the briefing, the American leader criticized director of national intelligence Joseph Maguire. Trump later decided to dismiss him.
US Ambassador to Germany Richard Grenell has been appointed Acting Director of National Intelligence.