https://thinkprogress.org/trump-compromising-information-russia-6f861b27b87b#.hd4u6uar6
"Citing unnamed U.S. officials, CNN reported on Tuesday afternoon that “classified documents presented last week to President Obama and President-elect Trump included allegations that Russian operatives claim to have compromising personal and financial information about Mr. Trump.” The documents, CNN reports, are based on information gathered by a former British intelligence operative considered to be credible by U.S. officials. While CNN is electing not to disclose the specific contents of the documents at this time, their report on them notes they “also included allegations that there was a continuing exchange of information during the campaign between Trump surrogates and intermediaries for the Russian government, according to two national security officials.” CNN reports that congressional leaders were briefed on some of the information by intelligence officials before November’s election. That may have been what then-Sen. Harry Reid (D-NV) was referring to when he penned FBI director James Comey a letter shortly before the election accusing him of withholding “explosive” information about Trump’s relationship with Russia."
