The big buzz is that Putin has some compromising under-age hooker Golden Shower video of Trump during one of his many visits to Saint Petersburg. Trump tried to bribe his way into some real estate deals but when that didn't work, he spent some time with local hookers. Apparently all photographed by the Russian intelligence people, because that's just what they do.
Buzzfeed also has some documents about extensive meetings between Trump representatives and Russian intelligence over the years. Trump is way, way compromised.
Actually, not so surprising. Trump did tell the naked Miss Teen USA contestants "I've seen all of this before." Who knew he was literally telling the truth?