U.S. special counsel Robert Mueller has issued a grand jury subpoena to another associate of longtime Donald Trump adviser Roger Stone, a lawyer for Andrew Miller, the subject of the subpoena, said on Thursday.
The subpoena is the latest to suggest that Mueller, who is probing Russian meddling in the 2016 U.S. presidential election, is focusing in part on Stone and whether he might have had advance knowledge of material allegedly hacked by Russian intelligence.
Paul Kamenar, Miller's lawyer, said his client, who normally works as a house painter, would be flying to Washington and was likely to appear at the federal courthouse there on Friday morning. The grand jury hearing testimony for Mueller's investigation regularly meets at the courthouse.