The Senate Judiciary Committee said Wednesday that the Russian government apparently used the National Rifle Association to help Donald Trump’s presidential campaign in 2016.

Documents suggest the Kremlin used the NRA to offer the campaign a back channel to Moscow—including a potential meeting between Trump and Vladimir Putin—and might have secretly funded Trump’s campaign, the committee said. One of the Russians named in the report even bragged she was part of the Trump campaign’s communications with Russia, The Daily Beast reported last year.

The NRA spent a record $30 million on Trump and the FBI is reportedly investigating whether any of the money came from Russia. U.S. law prohibits foreign money to be spent on elections.