ST LOUIS, MO - OCTOBER 09: Donald Trump, Jr. (R) greets his father Republican presidential nominee Donald Trump during the town hall debate at Washington University on October 9, 2016 in St Louis, Missouri. This is the second of three presidential debates scheduled prior to the November 8th election. (Photo by Rick Wilking-Pool/Getty Images)

Rinat Akhmetshin, named in US Senate documents as a former “Soviet counterintelligence officer”, confirmed his participation at the same meeting Mr Trump Jr had with Russian lawyer Natalia Veselnitskaya.
He said the discussion was billed as part of a Russian government effort to help the Republican during last year’s presidential election campaign.
Mr Akhmetshin said their conversation was “not substantive” and he “actually expected more serious” discussion.
The latest revelation adds another shift in the tale that has sparked questions over Donald Trump’s ties to Russia.
Mr Trump Jr did not disclose Mr Akhmetshin’s presence in statements and emails he released on the meeting earlier this week.
The emails revealed Mr Trump Jr was told Russian figures wanted to pass on negative information about Democrat Hilary Clinton and stated plainly it was part of a government-sanction effort to help the GOP candidate.
In response, Mr Trump Jr wrote: “I love it.”
Jared Kushner, Mr Trump’s son-in-law and …