Sen. Christopher Coons Christopher (Chris) Andrew CoonsBiden promises Democratic senators help in battleground states Shakespeare Theatre Company goes virtual for 'Will on the Hill...or Won't They?' The Hill's Morning Report - Sponsored by The Air Line Pilots Association - Pence lauds Harris as 'experienced debater'; Trump, Biden diverge over debate prep MORE (D-Del.) said Wednesday that lawmakers should "take a deep breath" following the release of emails setting up Donald Trump Jr.'s meeting with a Russian lawyer who claimed to have 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.

The emails have triggered a new line of inquiry in the investigation into Russia's meddling in the presidential election, with some Democrats saying they suggest more than obstruction of justice may have taken place.

But Coons cautioned that Democrats should be careful in moving forward.

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"It's important that we all take a deep breath, continue our investigations, make sure we get the facts straight and understand this in the broader, legal context," Coons told host Alisyn Camerota on CNN's "New Day."

The Delaware senator called the news of Trump Jr.'s meeting last year with Russian lawyer Natalia Veselnitskaya a "striking development."

"This is a striking development in that Donald Trump Jr. received emails in which he was proffered, he was told he might receive, directly from a Russian government attorney, information from a hostile power, Russia, that was seeking to help his father win the presidential election," said Coons, who serves on the Senate Judiciary Committee.

Coons also offered his own interpretation of the email chain of Trump Jr.'s correspondence with music promoter Rob Goldstone, who set about arranging the meeting with Veselnitskaya, saying his lack of surprise that the Russians wanted to help 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 is also "pretty striking."

"His enthusiasm for this meeting and his lack of surprise to get an email saying the Russian government was trying to help his dad win the election are both pretty striking."

Goldstone told Trump Jr. that Veselnitskaya had "information that would incriminate Hillary."

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Trump Jr. replied: “If it's what you say I love it.”

Coons said this meeting calls into question the claims by Trump associates that they did not have any interactions with the Russians.

"Just on the face of it, that forces aside all the things that have been said by Trump campaign officials and the White House that there was no interactions with Russians."

The meeting took place in June 2016 at Trump Tower. Then-Trump campaign chairman Paul Manafort and Trump's son-in-law Jared Kushner also attended the meeting.

Trump Jr. denies that he received any compromising information about Clinton.