Special counsel Robert Mueller leaves after a closed meeting with members of the Senate Judiciary Committee June 21, 2017, at the Capitol in Washington, DC. (Photo: Alex Wong / Getty Images)

Special counsel Robert Mueller’s investigation appears to be zeroing in on President Donald Trump as new details leak about a subpoena requesting wide-ranging information about the president and his associates going back to 2015.

NBC News reports,

“According to the subpoena, which was sent to a witness by special counsel Robert Mueller, investigators want emails, text messages, work papers, telephone logs and other documents going back to Nov. 1, 2015, 4½ months after Trump launched his campaign.”

The subpoena seeks documents about the president and nine of his associates.

Steve Bannon, Michael Cohen, Rick Gates, Hope Hicks, Corey Lewandowski, Paul Manafort, Carter Page, Keith Schiller and Roger Stone are all named.

According to NBC News, this latest revelation indicates Mueller’s intent to find out what Trump knew personally about Russia’s efforts to interfere with the 2016 election.