According to
>OCCHIONERO
individuals in Italian intelligence agency were going to plant some classified emails stolen from Hillary's insecure email server on a server in the U.S. and somehow blame that "theft" of classified info on Trump, or attribute it to him (I never figured out that connection) and I suppose the next step would have been to allege that it came into his possession as a result of collaborating with Russians.
I found that allegation quite stunning and there appeared to be quite a bit of material backing it up, although I did not read every tweet.