Donald Trump needs to decide whether he wants to keep being the Presidnt of the United States or resign his office and stay out of jail?

Special Counsel Robert Mueller is using a grand jury in Washington as part of an investigation into potential coordination between the Trump campaign and Russia, according to a person familiar with the probe.

The use of a grand jury, a standard prosecution tool in criminal investigations, suggests that Mueller and his team of investigators are likely to hear from witnesses and demand documents in the coming weeks. The person who confirmed to The Associated Press that Mueller had turned to a grand jury was not authorized to discuss the investigation by name and spoke on condition of anonymity.

The Wall Street Journal first reported the grand jury.

Grand juries are common vehicles to subpoena witnesses and records, though they do not suggest any criminal charges are near. It was not immediately clear how or whether the Washington grand jury was connected to the work of a separate one in Alexandria, Virginia. That panel has been used to gather information on Michael Flynn, Trump’s former national security adviser.