President Donald Trump’s son-in-law and aide, Jared Kushner, will be questioned by a US committee investigating alleged ties between the Trump team and Moscow.
Mr Kushner has volunteered to speak to the Senate Intelligence Committee, the White House said.
It is examining Russia’s alleged interference in last year’s election.
The US intelligence community believes alleged Russian hacking during the presidential election was done to help Mr Trump defeat Hillary Clinton.
Russia has denied the allegations and President Trump has branded the story “fake news”.
There are two congressional investigations into the issue, plus an FBI one.
The Senate committee wants to question him about two meetings he allegedly arranged with senior Russians, officials told the New York Times say.
But staff of Mr Kushner, who was a senior adviser to Mr Trump during the election campaign, have said that so far his offer to be questioned has not been answered.