Jared Kushner, adviser and son-in-law to President Trump, met with Robert Mueller's team about former White House national security adviser Mike Flynn amid the special counsel's investigation into Russian meddling in the 2016 presidential election, according to a new report.

Flynn, who is under investigation by Mueller's team, was the main topic of the meeting, sources told CNN.

Investigators asked Kushner to expound upon testimony given to lawmakers as well as information revealed by the media. The conversation mainly focused on making sure Kushner did not have information that exonerates Flynn, a source said.

"Mr. Kushner has voluntarily cooperated with all relevant inquiries and will continue to do so," Kushner's lawyer, Abbe Lowell, told CNN.

The meeting reportedly took place around the time Mueller asked witnesses about Kushner's role in former FBI Director James Comey's firing as well as his relationship with Flynn.

Last week the New York Times reported that Flynn’s lawyers told Trump’s lawyers they will no longer share information about the special counsel’s investigation, signaling that Flynn may be cooperating with Mueller’s investigation into possible collusion between the Trump campaign and Russia.

Flynn may be trying to negotiate a plea deal, as he may be worried about possible charges brought against his son, Michael Flynn Jr., who was chief of staff to his father. NBC News reported earlier this month that Mueller has enough evidence to levy charges against both Flynn and his son.

Earlier Tuesday, Harvard law school professor Alan Dershowitz speculated Flynn “will say anything” to get a deal from Mueller in the Russia investigation. “It’s not clear that Flynn has anything to offer,” Dershowitz told Fox News’ Laura Ingraham. “He’s trying to save his son. He’s trying to save himself. He’ll say anything. He’ll not only sing, he’ll compose and create evidence if he has to do that in order to get a deal.”