WASHINGTON U.S. President Joe Biden's national security adviser said on Friday there was no clear answer on how to return Evan Gershkovich, the Wall Street Journal reporter detained by Russia, to the United States.
"I do not want to give false hope," said the Biden aide, Jake Sullivan, in a briefing with reporters.
(Reporting by Nandita Bose; Writing by Trevor Hunnicutt; Editing by Chris Reese)
