John F. Kelly, who served as former President Donald J. Trump’s second White House chief of staff, said in a sworn statement that Mr. Trump had discussed having the Internal Revenue Service and other federal agencies investigate two F.B.I. officials involved in the investigation into his campaign’s ties to Russia. Mr. Kelly said that his recollection of Mr. Trump’s comments to him was based on notes that he had taken at the time in 2018. Mr. Kelly provided copies of his notes to lawyers for one of the F.B.I. officials, who made the sworn statement public in a court filing....