Former U.S. Ambassador to Ukraine Marie Yovanovitch, who emerged as a key witness of interest in House Democrats’ impeachment inquiry against President Donald Trump, may have committed perjury in testimony on the Ukraine case.

Fox News’s “Tucker Carlson Tonight” obtained emails indicating Yovanovitch communicated via her personal email account with a Democratic congressional staffer about a “quite delicate” and “time-sensitive” matter just two days after the whistleblower complaint was filed.

The emails appear to contradict what Yovanovitch has testified to House impeachment investigators last month, in which she told U.S. Rep Lee Zeldin (R-N.Y.), that she received an email from the staffer Laura Carey on Aug. 14 but never responded to it.

“I’m writing to see if you would have time to meet up for a chat—in particular, I’m hoping to discuss some Ukraine-related oversight questions we are exploring,” Carey then wrote to Yovanovitch. “I’d appreciate the chance to ground-truth a few pieces of information with you, some of which are quite delicate/time-sensitive and, thus, we want to make sure we get them right.”

On Aug. 15, Yovanovitch responded, “Thanks for reaching out—and congratulations on your new job. I would love to reconnect and look forward to chatting with you. I have let EUR [Bureau of European and Eurasian Affairs] know that you are interested in talking and they will be in touch with you shortly.”

Zeldin confirmed Carlson’s segment, writing: “It appears Ambassador Yovanovitch did not accurately answer this question I asked her during her ‘impeachment inquiry’ deposition under oath.”

During her closed-door deposition on Capitol Hill, Yovanovitch, who was appointed to be the U.S. Ambassador to Ukraine by former President Barack Obama, said President Trump, his allies, and Rudy Giuliani tried to smear her and stage her removal as ambassador to Kyiv and felt threatened by the president’s posture toward her. 

“I would highly suspect that this Democratic staffer’s work was connected in some way to the whistleblower’s effort, which has evolved into this impeachment charade,” Zeldin told Fox News. “We do know that the whistleblower was in contact with [House Intelligence Committee Chairman] Adam Schiff’s team before the whistleblower had even hired an attorney or filed a whistleblower complaint even though Schiff had lied to the public originally claiming that there was no contact. Additionally, while the contents of the email from this staffer to Ambassador Yovanovitch clearly states what the conversation would be regarding, Yovanovitch, when I asked her specifically what the staffer was looking to speak about, did not provide these details.”

“I specifically asked her whether the Democratic staffer was responded to by Yovanovitch or the State Department. It is greatly concerning that Ambassador Yovanovitch didn’t answer my question as honestly as she should have, especially while under oath,” he added.