The Russia attorney who met with Donald Trump Jr., Jared Kushner, and Paul Manafort promising damaging information on Hillary Clinton says she personally knows Russia's top prosecutor and engaged in conversations with him related to a U.S. sanctions law Moscow opposed.

Lawyer Natalia Veselnitskaya told the Wall Street Journal in an interview Friday that she was meeting with Russian officials regularly, and shared information about the sanctions law with Prosecutor General Yuri Chaika, a top prosecutor appointed by the Kremlin.

Veselnitskaya has said she was not working for the Russian government at the time of the June 2016 meeting at Trump Tower.

Veselnitskaya said she was speaking with Russian officials, including Chaika, about William Browder, a U.S.-born fund manager and Kremlin critic, who lobbied for passage of the 2012 U.S. sanctions law, known as the Magnitsky Act. The law imposed sanctions on Russians accused of human rights abuses. Russian President Vladimir Putin retaliated by banning American families from adopting Russian children.

Rinat Akhmetshin, a former Soviet military serviceman turned U.S. lobbyist who worked on the anti-Magnitsky Act effort, confirmed Friday he also attended the meeting at Trump Tower.

Trump Jr., the president's oldest son, and the White House did not disclose Akhmetshin's role in the meeting.

Trump Jr. acknowledged this week he accepted a meeting with Veselnitskaya because she promised to provide him with incriminating information about Clinton, the Democratic nominee for president.

He claimed most of the conversation at the meeting involved the Russian adoption ban and the Magnitsky Act.