The subpoena asks for all texts, letters, handwritten notes, or communications of any kind starting from November 1, 2015, between one unnamed witness and several senior members of Trump’s campaign team, the news website Axios reported Monday.
Ten people are targeted in the subpoena, including the president and others who have worked with him. The subpoena was seen by and labeled a "hit list" by Axios.
Among the people listed in the subpoena are outgoing White House communications director Hope Hicks, Trump's personal lawyer Michael Cohen and the president's former strategist Steve Bannon, as well as Carter Page, Corey Lewandowski and Paul Manafort.
November 1, 2015, the start of the subpoena's request, came nearly five months after Trump announced his candidacy.
The special counsel is investigating Russia’s alleged meddling in the 2016 US presidential election and whether there was any collusion between Moscow and Trump’s election campaign.
Russia has denied interfering in the election, and Trump has said there was no collusion.
On Monday, Trump accused the administration of his predecessor Barack Obama of launching the Russia investigation in order to help elect Democratic presidential candidate Hillary Clinton, describing it as a scandal bigger than Watergate.
"Why did the Obama Administration start an investigation into the Trump Campaign (with zero proof of wrongdoing) long before the Election in November?" Trump tweeted. "Wanted to discredit so Crooked Hillary would win."
"Unprecedented. Bigger than Watergate! Plus, Obama did NOTHING about Russian meddling," he added.
Last year, Trump accused Obama, without evidence, of having wiretapped Trump Tower in New York during the election campaign. Those claims were never verified.
Watergate was a political scandal that started in June 1972 when burglars affiliated with the reelection campaign of former President Richard Nixon were caught trying to break into the Democratic National Committee headquarters in Washington's Watergate office complex.
Nixon had to resign in August 1974 after revelations he had tried to stop the FBI from investigating the burglars’ ties to his reelection campaign.