Robert Mueller, the special counsel overseeing the Russia investigation, has impaneled a grand jury in Washington, The Wall Street Journal reported Thursday.
The move means the probe is intensifying and could stretch "for months," according to the newspaper. Impaneling a grand jury suggests Mueller "believes he will need to subpoena records and take testimony from witnesses," the Journal said.
It does not necessarily mean he will bring charges against Trump allies.
Former FBI Director Mueller is investigating Russian efforts to influence the 2016 election and whether the Trump campaign colluded with the Kremlin. The investigation has dogged and frustrated President Donald Trump during his first six months in office.
And some of Mueller's investigators are buying extra insurance in case they get sued.
CNN has learned some of the investigators involved in the probe are buying liability insurance out of concern they could become targets of lawsuits from those who are being investigated, according to one of the people familiar with the probe. The Justice Department covers legal fees for employees sued in the course of their duties, but some of the lawyers want extra protection. The Justice Department and special counsel's office both declined to comment on the liability concerns.
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