An attorney for the unnamed intelligence whistleblower who came forward with information about President Trump’s dealings with Ukraine reacted today to calls for his client to testify in the coming public impeachment hearings by reiterating that person is only willing to answer questions in writing.

“My client’s complaint has been largely corroborated. Nonetheless, I have offered to have my client respond in writing, under oath, and under penalty of perjury to Republican questions,” Andrew Bakaj said in a statement to CNN.

Bakaj also said there may be ulterior motives at play here.

“Moreover, because I am concerned this is part of a larger effort to unmask my client’s identity, I provide you the following, which I have previously stated publicly: THE IMPORTANCE OF PROTECTING MY CLIENT’S IDENTITY: I urge all of our government leaders - notably all Members of Congress - to step back and reflect on the important role whistleblowers play in our constitutional republic's ability to oversee itself,” he said.

The attorney said members of the intelligence community must disclose when they have a reasonable belief a violation of law, rule or regulation has happened.

CNN has also obtained a Nov. 6 letter from the whistleblower’s legal team to Rep. Devin Nunes reiterating their offer to answer written questions. The letter explicitly reiterates the legal team’s intention to work with both parties equally.