Washington (CNN) Special counsel Robert Mueller has offered to reduce the number of obstruction-related questions President Donald Trump would be asked by investigators, sources familiar with the negotiations tell CNN. However, Mueller wants obstruction to be addressed in person, not just in written answers.

The President's lawyers had previously offered the special counsel written answers to obstruction questions and limiting the interview to matters before his presidential inauguration, which are largely confined to collusion.

Trump's attorney, Rudy Giuliani, told reporters Wednesday that the President's legal team has received a response from Mueller's team regarding their counter-proposal for a potential interview with the President.

"We're in the process of responding to their proposal," Giuliani said after an event in Portsmouth, New Hampshire, indicating that Mueller's team had responded Tuesday.

He added that Trump has "always been interested in testifying. It's us, meaning the team of lawyers, including me, that have the most reservations about that."

Read More