Sen. Dianne Feinstein Dianne Emiel FeinsteinMcConnell says Trump nominee to replace Ginsburg will get Senate vote Top Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence Intensifying natural disasters do little to move needle on climate efforts MORE (D-Calif.) said on Sunday President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE's son Donald Trump Jr. will give public testimony before the Senate Judiciary Committee this fall.

"It'll be this fall, I know that for sure," she told CNN of the timing. "Things keep changing. Not by design, but by the press of other business on the committee."

Feinstein's comments come over a week after Trump Jr. completed a five-hour interview before Senate Judiciary staffers behind closed doors.

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There, he acknowledged that he had agreed to take part in a meeting with a Russian lawyer in the summer of 2016 in which he was promised damaging information on then Democratic presidential nominee Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE.

Trump Jr. is one of the first members of the president's inner circle to come before congressional investigators and the only immediate member of his family to do so.

Trump’s son-in-law and senior adviser, Jared Kushner, has interviewed previously before the Senate Intelligence Committee.

The Judiciary Committee is probing alleged ties between the Trump campaign and Russian election meddling.

"This could take a year, a year and a half, if not more. So I think people have to be patient. The chairman and I work well together. If we have a difference, we work it out between us," said Feinstein, who is the committee's ranking Democrat.

Committee Chairman Sen. Chuck Grassley (R-Iowa) has also said he wants Trump Jr. to testify publicly. His interview this month was not under oath, however lying to Congress would still be a crime.