Democrats taking control of the U.S. House of Representatives in January plan to send Special Counsel Robert Mueller the transcripts of testimony by some of President Donald Trump’s closest associates so they can be reviewed for evidence and possible falsehoods, said three sources familiar with the matter.

Trump’s son-in-law Jared Kushner, son Donald Trump Jr, former advisers Roger Stone and Corey Lewandowski, personal aide Rhona Graff and former personal aides Hope Hicks and Keith Schiller all testified before the House Intelligence Committee while it was under control of its outgoing Republican majority.

The sources said the transcripts of those interviews will be among those sent to Mueller’s team, which is investigating Russia’s alleged interference in the 2016 presidential election and possible collusion by Trump’s campaign team.