Vice President Pence's spokesman said Tuesday that the vice president is not focusing on stories surrounding 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 campaign.

His comments come after new details emerged regarding Donald Trump Jr.'s meeting last year with a Russian lawyer.

"The Vice President is working every day to advance the president's agenda, which is what the American people sent us here to do," press secretary Marc Lotter said in a statement.

"The Vice President was not aware of the meeting. He is not focused on stories about the campaign, particularly stories about the time before he joined the ticket."

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President Trump announced in July last year his decision for Pence to serve as his running mate.

The meeting between Trump Jr. and a Russian lawyer took place on June 9, 2016.

The statement from Pence's press secretary comes after Trump Jr. on Tuesday released a chain of emails ahead of a New York Times story. The emails reveal his conversations about setting up the meeting with a Russian lawyer offering compromising information on 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.

The release came after The New York Times reported Trump Jr. was told before the meeting that the harmful information on Clinton was part of a Russian government effort to help his father’s presidential campaign.