by Chuck Ross
Sen. Ron Johnson, the chairman of the Senate Homeland Security Committee, is seeking authority to subpoena Stefan Halper, the former Cambridge professor who worked as an FBI confidential source during the Trump-Russia probe.
The Senate panel will hold a vote Wednesday regarding subpoenas for 41 witnesses Johnson wants to interview as part of a broad review of the FBI’s investigation of the Trump campaign and other intelligence-gathering activities regarding Trump associates.
The committee voted along party lines in June to authorize subpoenas to compel testimony from 35 witnesses. Politico published an updated list on Monday of witnesses Johnson’s wants to subpoena.