Special Counsel Robert Mueller is ramping up his investigation into Russia’s alleged role in the 2016 presidential election. The Wall Street Journal reports Mueller will impanel a Washington Grand Jury to investigate Russian interference in the 2016 president election.

Wall Street Journal reports:

The grand jury, which began its work in recent weeks, is a sign that Mr. Mueller’s inquiry is ramping up and that it will likely continue for months. Mr. 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. A spokesman for Mr. Mueller, Joshua Stueve, declined to comment. Moscow has denied seeking to influence the election, and Mr. Trump has vigorously disputed allegations of collusion. The president has called Mr. Mueller’s inquiry a “witch hunt.” Ty Cobb, special counsel to the president, said he wasn’t aware that Mr. Mueller had started using a new grand jury. “Grand jury matters are typically secret,” Mr. Cobb said. “The White House favors anything that accelerates the conclusion of his work fairly.…The White House is committed to fully cooperating with Mr. Mueller.” TRENDING: Obama Statement on Ginsburg Demands GOP Senate Honors Her Dying 'Instructions' and Put Off Vote on Supreme Court Nominee Until New President Sworn In Before Mr. Mueller was tapped in May to be special counsel, federal prosecutors had been using at least one other grand jury, located in Alexandria, Va., to assist in their criminal investigation of Michael Flynn, a former national security adviser. That probe, which has been taken over by Mr. Mueller’s team, focuses on Mr. Flynn’s work in the private sector on behalf of foreign interests. Grand juries are powerful investigative tools that allow prosecutors to subpoena documents, put witnesses under oath and seek indictments, if there is evidence of a crime. Legal experts said that the decision by Mr. Mueller to impanel a grand jury suggests he believes he will need to subpoena records and take testimony from witnesses.

According to a new report by VOX, the witch hunt just got worse, as Mueller has notified former FBI Head James Comey and former Acting FBI Director Andrew McCabe that they should be prepared to testify against President Trump.

VOX reports: