The 25-year-old federal contractor facing charges after leaking classified information to a news outlet met with staff for Sen. David Perdue, R-Ga., earlier this year.
Reality Leigh Winner, who was arrested Saturday, detailed the meeting in a Facebook post Feb. 14.
"A great American once told us to go out and have conversations with one another," Winner wrote, according to the Atlanta Journal-Constitution.
In her Facebook post, Winner said she told Perdue's staff not to "be afraid to directly state when our president or his cabinet tell outright lies."
A spokeswoman for Perdue said the senator's aides and Winner discussed environmental issues and reiterated that the staff "meets with hundreds of Georgians monthly to discuss issues important to them."
The spokeswoman also noted Winner's work as a federal contractor was not discussed.
"The allegations against Ms. Winner are very serious, and if true, directly threaten our national security," she said.
Winner is facing charges for releasing a classified National Security Agency document to the Intercept.
Her arrest comes as the Trump administration and Republican lawmakers have been pushing the Justice Department to pursue government workers leaking information to the press.
Trump identified leakers as the "big story" in the investigation into Russia's meddling in the 2016 election.
Editor's note: The article's headline has been updated to reflect that Winner met with Perdue's staff and not the senator himself.