The special counsel investigating ties between the Trump administration and the Kremlin, along with Russian interference in the USA election, has started using a grand jury in Washington, reports have revealed.
Mueller is investigating Russia's efforts to influence the 2016 election and whether President Donald Trump's campaign or associates colluded with the Kremlin as part of that effort, the newspaper said.
President Trump has repeatedly called the investigation into Russian interference, and the alleged connections between his campaign and Russian figures, a "witch hunt".
Major arms of the USA intelligence community determined last fall that the Russian government was involved in attempts to influence the results of the U.S. election. That probe has since been taken over by Mueller.
Mueller empaneled a grand jury Thursday in Washington, D.C., a move that will likely accelerate the conclusion of the Russian Federation investigation. Mueller has the authority to investigate any matters that "arose or may arise directly from the investigation", according to Rosenstein's order appointing Mueller as special counsel. In a statement Thursday, White House special counsel Ty Cobb claimed he didn't know Mueller had begun using the grand jury or issuing subpoenas.
"You don't impanel a grand jury unless your investigation has discovered enough evidence that you feel reflects a violation of at least one, if not more, criminal provisions", he said.
Henning says it's possible that President Trump could be asked to testify before the Grand Jury, but at this point, he doubts it.
"The White House favors anything that accelerates the conclusion of his work fairly", Cobb said.