During the summer last year, the Obama administration filed a request with the Foreign Intelligence Surveillance Court (FISA) to monitor communications involving Trump and several advisers but the request was denied, according to Heat Street former editor, Louise Mensch.
Just a day before the 2016 election, Mensch reported that 'sources with links to the counter-intelligence community' confirmed that a Foreign Intelligence Surveillance Court (FISA) had granted a FISA court warrant in October to monitor activities in Trump tower.
On Wednesday, a New York Times report said White House officials took efforts in the closing days of the Obama administration to analyze and spread information about Russian election interference, driven by a concern that the material might get buried by Trump.
Intelligence agencies rushed to analyze raw intelligence material about Russia connections, going over months-old material as the extent and possible motives of what the agencies say is Russian election hacking emerged.
Officials made efforts to ask specific questions at intelligence briefings as a way to get the information into the record and be archived for examination later.
In January, American law enforcement and intelligence agencies examined intercepted communications and financial transactions as part of a broad investigation into possible links between Russian officials and associates of Trump, according to the Times.
The FBI led the investigations, aided by the National Security Agency, and the Treasury Department's financial crimes unit.