"The former British intelligence officer who gathered the material about Mr. Trump is considered a competent and reliable operative with extensive experience in Russia, American officials said. But he passed on what he heard from Russian informants and others, and what they told him has not yet been vetted by American intelligence.
The memos describe sex videos involving prostitutes with Mr. Trump in a 2013 visit to a Moscow hotel. The videos were supposedly prepared as “kompromat,” or compromising material, with the possible goal of blackmailing Mr. Trump in the future.
The memos also suggest that Russian officials proposed various lucrative deals, essentially as disguised bribes in order to win influence over Mr. Trump.
The memos describe several purported meetings during the 2016 presidential campaign between Trump representatives and Russian officials to discuss matters of mutual interest, including the Russian hacking of the Democratic National Committee and Mrs. Clinton’s campaign chairman, John D. Podesta.
If some of the unproven claims in the memos are merely titillating, others would amount to extremely serious, potentially treasonous acts.
One of the opposition research memos quotes an unidentified Russian source as claiming that the hacking and leaking of Democratic emails was carried out “with the full knowledge and support of TRUMP and senior members of his campaign team.” In return, the memo said, “the TRUMP team had agreed to sideline Russian intervention in Ukraine as a campaign issue” because Mr. Putin “needed to cauterize the subject.”