The administration said it would release at least some of that information to Congress, but it was not immediately clear whether it would be made public, or kept classified.
Trump, who said he wanted warmer ties with Russia, had opposed the legislation as it made its way through Congress last year. Monday’s deadline was seen as a test of his willingness to crack down on Russia.
Members of Congress, including Democrats and some of Trump’s fellow Republicans, have been clamoring for his administration to use sanctions to punish Moscow for past election interference and prevent future meddling in U.S. polls.
Several congressional committees, as well as Special Counsel Robert Mueller, are investigating whether Russia tried to tilt last November’s election in Trump’s favor, using means such as hacking into the emails of senior Democrats and promoting divisive social and political messages online. Trump and the Kremlin have separately denied any collusion.
Senator Bob Corker, the Republican chairman of the Senate Foreign Relations Committee, one of the main congressional architects of the sanctions law, said he was not concerned that the administration did not announce sanctions or release all of the required reports on Monday.
“This is when sanctions season begins, and so they’ll be rolling them out,” he told reporters.
“We feel pretty good about the process,” Corker said. “They’re rushing the information over to us today, and by the close of business, they’re going to have two of the three, as I understand it. So they’re taking it very seriously.”