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-in-law and senior adviser, Jared Kushner, encouraged the White House to more aggressively defend Donald Trump Jr. after it was reported that he and a Russian lawyer met ahead of the 2016 presidential election.

According to a new report by Politico, Kushner was pressing White House aides to offer more talking points and surrogates after The New York Times reported details about Trump Jr.'s meeting with a Russian lawyer who offered compromising information on 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.

Kushner and former campaign chairman Paul Manafort also attended the meeting.

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Trump Jr. released a stunning chain of emails this week detailing his conversations about setting up a campaign meeting with a Russian lawyer.

The information “would incriminate Hillary and her dealings with Russia and would be very useful to your father,” reads one of the emails from Rob Goldstone, who acted as an intermediary to set up the meeting.

“This is obviously very high level and sensitive information but is part of Russia and its government's support for Mr. Trump,” wrote Goldstone.

Politico reported Thursday that Kushner clashed with press secretary Sean Spicer and deputy press secretary Sarah Huckabee Sanders over the strategy to address the report. A source told Politico that Kushner was angry over the strategy.

White House chief of staff Reince Priebus and top adviser Kellyanne Conway both made the rounds on news shows this week defending Trump Jr.'s meeting and insisting there was no collusion between Trump's campaign and Russia to influence the election.

President Trump issued a brief statement defending his son through Huckabee Sanders during an off-camera briefing with reporters.

“My son is a high-quality person and I applaud his transparency,” Trump said.