Robert Hur, at the start of his special counsel probe into Joe Biden’s handling of classified documents, was lauded as an experienced and fair federal prosecutor who was well-versed in handling high-profile and complex investigations.

Then, after a year of near-total public silence, he released a damning report detailing the president’s alleged previous mishandling of classified material. Hur, a former US attorney appointed by then-President Donald Trump, was met with resounding backlash from Democrats, including from Biden himself.

As Hur steps into the halls of Congress to testify Tuesday, his background – and how critics and allies of the president believe that may have seeped into his investigation – is once again going to be thrust into the spotlight.

And after finishing up his work last week, Hur is no longer with the Justice Department, according to a department spokesperson – meaning he will be testifying about his investigation as a private citizen.