Special counsel probe into Biden's handling of classified documents appears to be nearing end

Special counsel Robert Hur's interview of President Joe Biden is a sign that the classified documents investigation is nearing conclusion after casting a wide net that included dozens of witnesses during the ten-month long probe, multiple sources told CNN.

The White House announced this week that Biden was questioned by Hur and his team over two days in a voluntary interview that CNN has reported was scheduled weeks earlier. While the White House has declined to discuss details of the questioning, including whether Biden invoked executive privilege, the interview is the first public development in months.

One source told CNN that investigators have indicated they hope to wrap by the end of the year. As of now, it's unclear if the probe will result in charges being filed, but sources familiar with the investigators' line of questioning said they got the impression that's unlikely, and there has been no discernible grand jury activity.

The Justice Department has said that Hur will produce a final report explaining his findings from the investigation, a standard part of a special counsel's work.

"The breadth and depth of Hur's work suggests that he is going to compile a detailed report to explain exactly how he conducted this investigation," one source familiar with the investigation told CNN.

Hur was appointed in January to investigate after classified documents were found at Biden's former office at the Penn Biden Center in Washington, DC, and at his Wilmington, Delaware, home.

Compared to special counsel Jack Smith's investigation into classified materials found at former President Donald Trump's Mar-a-Lago residence, including the indictment handed down in June, Hur's probe into Biden has continued to operate quietly behind the scenes.