Sen. Mark Warner Mark Robert WarnerIntelligence chief says Congress will get some in-person election security briefings Overnight Defense: Trump hosts Israel, UAE, Bahrain for historic signing l Air Force reveals it secretly built and flew new fighter jet l Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' House approves bill to secure internet-connected federal devices against cyber threats MORE (D-Va.) on Wednesday called on 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 to follow through on his promise to take action on gun violence and demanded that Congress pass legislation.

Warner's comments came in the form of a series of tweets, largely in response to mounting calls for gun control following the deadly high school shooting in Parkland, Fla.

“These kids have ten times the courage of a lot of members of Congress,” Warner wrote. “The Parkland survivors need our thoughts and prayers because they’ve been through hell, but more than that, they deserve action and change.”

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The senator said he was “encouraged” by Trump backing efforts to improve background checks for gun sales and his order for the Justice Department to ban bump stocks.

But he warned that Trump needed to follow through on those calls for action, saying “this wouldn’t be the first time the President tweeted a good game but failed to deliver.”

“Words need to be followed up with action, and those modest steps alone aren't an adequate response to this epidemic of gun violence,” Warner said.

The Democrat noted a new Quinnipiac University poll released Tuesday that found that about two-thirds of Americans were in favor of stricter gun laws, the highest level of support since the poll began.

"There's no excuse for Congress not to act," he said.

The Parkland survivors need our thoughts and prayers because they’ve been through hell, but more than that, they deserve action and change. — Mark Warner (@MarkWarner) February 21, 2018

Unfortunately, this wouldn’t be the first time the President tweeted a good game but failed to deliver. The President needs to either lead or put down the phone. — Mark Warner (@MarkWarner) February 21, 2018

The Parkland students are making a difference. The millions of Americans who refuse to accept 35,000+ gun deaths per year as normal are making a difference. — Mark Warner (@MarkWarner) February 21, 2018

Just yesterday a new poll showed two-thirds of Americans wants stronger gun safety laws – the highest level ever recorded by Quinnipiac University since it started polling the issue after Sandy Hook. There’s no excuse for Congress not to act. — Mark Warner (@MarkWarner) February 21, 2018

Warner's series of tweets came one week to the day of the deadly mass shooting at Marjory Stoneman Douglas High School that left 17 people dead.

Thousands of students walked out of classes Wednesday to rally at the U.S. Capitol for gun control, and the student survivors of the shooting are demanding that lawmakers take action on gun regulations.