WASHINGTON (AP) — The Justice Department’s watchdog is nearing the release of its report on the early stages of the FBI’s Russia investigation, a document likely to revive debate about a politically charged probe that shadowed President Donald Trump’s administration from the outset.

The inspector general in recent days has invited witnesses and their lawyers who were interviewed for the report to review portions of a draft this week and next, a critical final step toward making the document public, according to multiple people familiar with the process who insisted on anonymity to discuss it.

As part of that process, the people will have opportunities to raise concerns or suggest potential edits, making it unclear precisely when in the coming weeks a final version could be ready for release. Inspector General Michael Horowitz told Congress in a letter last month that he did not expect a lengthy review period and that he intended to make as much of the report public as possible, with minimal redactions.

The release of the report is likely to coincide with House impeachment proceedings scrutinizing the Trump administration’s efforts to press Ukraine into investigating Democratic rival Joe Biden. Any finding of problems by the inspector general in how the FBI gathered and collected evidence in investigating ties between the Trump campaign and Russia could at least temporarily buoy Trump and other Republican supporters eager to turn the page from the congressional scrutiny now imperiling his White House.

Trump has long insisted that the investigation into his campaign was a “hoax” and “witch hunt,” asserting without evidence or elaboration as recently as last month that law enforcement officials had done “really bad things.”