The Papadapolous outreach to Russia is old news. See here:
The new news is that Papadopoulos was stupid enough to meet with the FBI without having a lawyer present, and he was stupid enough to lie about stuff that was fully documented in his emails. Although, giving him the benefit of the doubt, it is possible that he didn't really lie but simply misremembered the timeline.
Anyway, I suspect that he pleaded guilty because Mueller promised him a very light sentence in return.
After reading the Statement of Offense, I'd say that it is more exculpatory for the Trump campaign than inculpatory. The campaign clearly didn't respond to Papdopoulos' eager-beaverness, and some higher-ups expressed wariness about dealing with Russia because of Logan Act and other concerns.
I'll note also that the Statement is dated Oct. 5, 2017. Mueller has had this in his back pocket for three weeks, and yet he releases it now (and foreshadows it on Friday) along with the long-awaited indictment of Manafort for completely unrelated financial crimes, as a way to deflect attention from the fact that the entire Russia investigation is predicated on a bogus document prepared by (and subsequently lied about by) the Clinton campaign.
In short, a nothing burger. On to the next leftist meltdown!
