Ex-aide Sam Nunberg was grilled over Trump's 2013 Moscow trip in secret Senate hearing: report

The Senate held closed-doors hearings with former aides to President Donald Trump, where they were asked about Trump's dealings with Moscow.

Ex-Trump aide Sam Nunberg said that he was questioned about Trump's 2013 trip to Moscow, reports NBC News.

Nunberg worked for Trump in 2015 and said he was asked about Trump's trip to Moscow in 2013, the Trump Tower Moscow project and "specific relationships between past members of the campaign and foreign actors who may have worked with Russia."

"They are doing an exhaustive investigation," Nunberg said to NBC News after his interview.

The interview was "narrowly focused on collusion," according to Nunberg, and featured a "checklist" of questions about Russian banks and oligarchs.

"Nunberg, who sat with committee staff for four and half hours, said he was asked repeatedly about how Trump formulated his policy positions regarding Russia," the report said. "Investigators also peppered Nunberg with questions which suggested to him that they were trying to pin down specific relationships among members of Trump's campaign and organization and outside actors, including Wikileaks founder Julian Assange."