Trump ally Bernard Kerik turned over documents to special counsel investigating events surrounding Jan. 6

Washington — Former New York City Police Commissioner Bernard Kerik has turned over thousands of pages of records to special counsel Jack Smith as part of the federal investigation into efforts to stop the transfer of presidential power after the 2020 election, sources familiar with the matter confirmed to CBS News.

The documents were submitted to Smith on Sunday. A source close to Kerik's legal team said they believe the records, which include sworn affidavits from people raising concerns about the integrity of the 2020 presidential contest, show there was a genuine effort to investigate potential voter fraud in the last election.

CNN was first to report that Kerik had given Smith's team the materials.