1. Russian lawyer Natalia Veselnitskaya denies to the New York Times that she had links to the Kremlin.
Donald Trump Jr. says he was first introduced to Veselnitskaya on the day they met in New York, on June 9, 2016.
Veselnitskaya is a Russian national who actively lobbied internationally against the Magnitsky Act, a law passed in 2012 that targeted Russians implicated in corruption and human rights abuses.
The law imposed sanctions and banned some Russians from entering the US or using US banking systems.
In a tit-for-tat response to the Magnitsky Act, the Russian government banned the adoption by US families of Russian children.
Veselnitskaya is the founder of a non-governmental organization called the Human Rights Accountability Global Initiative Foundation.
The group's website, most of which is still under construction, mentions the Magnitsky Act and says the organization "is dedicated to overturning the Russian adoption ban."
2. The New York Times had depicted Veselnitskaya as a Kremlin-linked lawyer, but she has insisted she has no ties to the Russian government.
Kremlin spokesman Dmitry Peskov also denies any government links with Veselnitskaya.
In an interview with NBC, the lawyer confirmed the meeting took place and said it was aimed at discussing US sanctions on Russia.
"I never had any damaging or sensitive information about Hillary Clinton. It was never my intention to have that," Veselnitskaya said.
"It is quite possible that maybe they were longing for such an information. They wanted it so badly that they could only hear the thought that they wanted," she told NBC, according to a translation.
3. Trump's web of Russian ties grows with Miss Universe links.
A controversial meeting between Donald Trump Jr. and a Russian lawyer was facilitated by a colorful collection of associates who can be traced back to a Miss Universe pageant in Moscow in 2013.
The meeting adds four more characters to President Donald Trump's complex web of Russian ties, a thorny issue that has dogged the President's first months in office and has prompted formal investigations.
The New York Times first reported the meeting between lawyer Natalia Veselnitskaya and Trump's eldest son, who was joined by Trump's campaign chief, Paul Manafort, and the President's son-in-law, Jared Kushner.
Trump Jr. on Tuesday released what he described as the full email chain between him and Rob Goldstone, a British publicist who set up the June 9, 2016 meeting.
The emails largely confirmed a New York Times story from Monday that said Trump Jr. was told before the meeting that Veselnitskaya was linked to the Kremlin and had damaging information about Hillary Clinton that came from the Russian government.