The Russian lawyer who held a controversial meeting with Donald Trump's son has said she is ready to testify in front of the US Senate about the encounter, in which she allegedly offered him information that would incriminate Hillary Clinton.

“Given the mass hysteria today [about this meeting], I am ready to clarify the situation… through lawyers or by testifying in the US Senate,” Ms Veselnitskaya told Russia’s Kremlin-sponsored RT TV channel on Wednesday.

The lawyer refuted the allegations that she acted on behalf of Russian authorities and was trying to pass information about the Clinton campaign to Donald Trump Jr.

Rinat Akhmetshin, a Russian-born US lobbyist who was also present at the meeting, claimed that Ms Veselnitskaya had brought documents with her that detailed what she believed was the flow of illicit funds to the Democratic National Committee.

Ms Veselnitskaya did not respond to numerous requests to comment on this claim sent by The Telegraph.