Most of it's in the OP and the NY Times article, but
- Saturday, NY Times released a story about a previously undisclosed meeting between DT Jr, Paul Manafort, and Jared Kushner with a Russian lawyer in Trump Tower, which was allegedly put together to gather incriminating information about Hillary weeks after Donald won the RNC nomination in June 2016
- The meeting (but not its content) was only recently, retroactively revealed by Kushner and Manafort after their respective meetings with Congress
- Trump Jr released a statement Saturday saying the meeting happened, but it was about adopting Russian babies
- WH lawyers and chief of staff claim the meeting was organized by Steele's legal group as a false flag against the Trump admin
- Sunday, NYT releases a followup article with more details about who attended and what was discussed.
- Trump Jr releases an amended statement about what was discussed, now including the detail that he originally arranged the meeting under the pretext of getting information about Clinton, and that the lawyer then switched the subject to the US removing 2012 congressional sanctions placed on Russia for murdering a lawyer (which Putin responded to by banning the adoption of Russian babies to US citizens). He has subsequently tweeted that getting opposition research is no big deal, so he doesn't see why there's a fuss.
- Trump admin maintains he never knew about the meeting
- Trump Jr maintains that he did not tell Manafort and Kushner why the meeting was being arranged
- Russian government claims they have no idea who lawyer is (despite the fact that she represents numerous government officials)
- Between Sunday and today it was revealed the meeting was arranged by (and attended by) a close Trump family friend (who was staying in Trump tower at the time according to his own social media, which he's tried to wipe in the interim), at the behest of a Russian business man/musician who is also a close personal friend of Trump (he was in the guy's music video after meeting him at the 2013 Miss Universe pageant).
- The Trump family friend has since released an official statement saying he did arrange the meeting, and for whom.