The Senate Intelligence Committee said Donald Trump Jr. had three calls with blocked numbers, but his father wasn't one of them.
"I am a lawyer, and I am an informant," Veselnitskaya now says.
The presence of Russians at the inauguration events reflected anticipation in Moscow for a thaw in relations with the U.S.
He was one of at least eight people at a controversial June 2016 Trump Tower meeting.
The foundation's real mission was to fight the sanctions on Russian officials.
Even though neither is a lawyer, Trump Jr. told Congress his talks with the president about meeting with a Russian lawyer are protected.
The president originally stated the meeting was "about the adoption of Russian children."
The Senate Judiciary Committee had asked Natalia Veselnitskaya for information about her Trump Tower meeting.
Natalia Veselnitskaya bought millions of dollars of property on a five-figure income.
His latest explanation: He was worried about Hillary Clinton.
Browder is a longtime critic of the Russian government who lobbied Congress to pass the Magnitsky Act.
Natalia Veselnitskaya has denied she represented the Kremlin but court files obtained by Reuters say she once represented the interests of the security services.
Kaveladze was once involved in a congressional money-laundering investigation.
Kaveladze's lawyer says he heard from Robert Mueller, indicating that the Trump Jr. meeting is being probed as part of the special counsel's investigation.
Yuri Chaika is a well-known target for Putin critics. Could he be the "crown prosecutor" that Trump Jr. was told had damaging information on Clinton?
Rinat Akhmetshin is a Russian-American lobbyist with alleged ties to Russian Intelligence.
Donald Trump Jnr. appeared to confirm reports over the weekend that he met the Russian attorney at Trump Tower.