Mueller, the ex-FBI director, rarely speaks publicly and has been virtually silent about his special counsel experience since testifying before Congress in July 2019.
In two separate podcast episodes, each nearly an hour, Mueller doesn't talk about his work as special counsel.
The Mueller interview is a bookend to Rosenberg's two-parter with Mueller's successor as FBI director, James Comey, in the podcast's first season.
The experience inspired a lifetime of public service, primarily because Mueller was grateful to have survived.
In the Mueller interview, Rosenberg said he relished the opportunity to get to know someone he knew only as a boss.