Mr. Kushners lawyers addressed questions about his disclosure but deferred to Donald Trump Jr. on questions about the meeting itself.
Mr. Manafort, the former campaign chairman, also recently disclosed the meeting, and Donald Trump Jr.s role in organizing it, to congressional investigators who had questions about his foreign contacts, according to people familiar with the events.
A spokesman for Mr. Manafort declined to comment. In response to questions, Ms. Veselnitskaya said the meeting lasted about 30 minutes and focused on the Magnitsky Act and the adoption issue.
Nothing at all was discussed about the presidential campaign, she said, adding, I have never acted on behalf of the Russian government and have never discussed any of these matters with any representative of the Russian government.
Because Donald Trump Jr. does not serve in the administration and does not have a security clearance, he was not required to disclose his foreign contacts. Federal and congressional investigators have not publicly asked for any records that would require his disclosure of Russian contacts. It is not clear whether the Justice Department was aware of the meeting before Mr. Kushner disclosed it recently. Neither Mr. Kushner nor Mr. Manafort was required to disclose the content of the meeting in their government filings.
