GOP chairman plans to call on Donald Trump Jr

"If he comes before our committee - and we'll subpoena him if necessary - then it would be appropriate for anybody to get into anything that went on at that meeting", Grassley said.

Trump Jr. said Tuesday he would be "happy" to work with a Senate Intelligence Committee now investigating alleged Russian meddling in the 2016 presidential election after he himself acknowledged meeting a Kremlin-linked lawyer during his father's campaign.

But that offer came before the latest revelation that Donald Trump Jr., the elder Trump's son-in-law, Jared Kushner, and Manafort met with Russian lawyer Natalia Veselnitskaya. The Russian lawyer has claimed that the 30-minute meeting focused on the Magnitsky Act and the issue of Russian adoptions by United States citizens.

'And I think it's raised a lot of questions, ' Grassley added, as the Donald Trump Jr story has devoured the news cycle for the past six days.

According to the Former Russian prosecutor, Natalie Veselnitskaya, she was initially denied a U.S. Visa to enter the county but was later given immigration parole.

Multiple Congressional committees as well as Special Counsel Robert Mueller are investigating potential collusion between the Russian government and the Trump campaign.

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A lawyer for Donald Trump Jr. did not immediately respond to a message seeking comment on whether his client would agree to appear before the committee. He also said that he didn't fault his son for attending.

Trump also said in a tweet that his son was "open, transparent and innocent" and again dismissed the ongoing Russian Federation investigation as the "greatest Witch Hunt in political history". Dianne Feinstein, D-Calif., and Donald Trump Jr could testify as early as next week.

"It is unclear how she was still in the country for that meeting, despite being denied a visa beforehand and her parole purportedly expiring on January 7, 2016", Grassley wrote, according to a statement and copy of the letter released Wednesday.

Working in consultation with the White House to select a nominee, including an hour-long meeting with Trump and several phone calls, Grassley said in June he was pleased with the selection process.

The exchange showed Trump Jr. conversing with a music publicist who wanted him to meet with a "Russian government attorney" who supposedly had dirt on Clinton as "part of Russia and its government's support for Mr. Trump".

Trump Jr. and Goldstone eventually set June 9 as the date for the meeting.

  • Adam Floyd