Seeking to frame the bad news before a New York Times article could drop, Donald Trump Jr. on Tuesday tweeted out a redacted copy of an e-mail chain between himself and Rob Goldstone, a music promoter who was offering to connect the campaign with a Russian official who purportedly had negative information about Hillary Clinton. Given that this is an informal e-mail chain between two people who know each other well, some of the names and references may be unclear to casual readers. As such, we have endeavored to explain who the players are. They're listed in alphabetical order by first name.
Aras Agalarov: Agalarov is the president of the Crocus Group, a Moscow-based real estate development firm that licensed the Miss Universe pageant from the Trump Organization in 2013 to host its pageant in the Russian capital. This is the point at which Agalarov and his son, Emin, became associated with the Trumps. Agalarov is mentioned on Page 4 in an e-mail from Goldstone as having met with the "Crown prosecutor of Russia" who offered to provide incriminating information about Hillary Clinton.
"Crown prosecutor." See Yuri Chaika.
Donald Trump. Trump is mentioned on Page 4 of the e-mail chain when Goldstone suggests that he wants to discuss the matter with Trump Jr. before the then-candidate.
Donald Trump Jr. The president's son coordinates the meeting with Goldstone, Paul Manafort and Jared Kushner.
Emin Agalarov. The son of Aras Agalarov. He is a vice president of the Crocus Group and a pop music star in Russia. Professionally, he uses his first name only. (In 2013, Trump appeared in one of his videos.) Emin is mentioned repeatedly in the e-mails. When Goldstone first offers access to the information he has at his disposal, Trump Jr. requests a phone call with Emin. On Page 3, Goldstone mentions that Emin can't talk at the moment because he's onstage in Moscow. It's not clear whether the two talked, but the next day Goldstone sets up a meeting at Emin's request.
Hillary Clinton. Then the front-runner for the Democratic presidential nomination. She's mentioned on Page 4.
Jared Kushner. Trump Jr.'s brother-in-law is mentioned on Page 2 when Trump Jr. explains who he expects to attend the meeting. Kushner does attend. According to an NBC interview with Natalia Veselnitskaya on Tuesday, he leaves after about 10 minutes.