Robert Mueller’s Russia probe is being investigated by the US Justice Department watchdog, Attorney General Bill Barr told Congress on Tuesday.

The Justice Department’s inspector general, Michael E. Horowitz, is examining how law enforcement officials obtained permission to wiretap Carter Page, Trump’s campaign-era foreign policy advisor, the New York Times reports.

Horowitz has been exploring whether political bias lead Mueller’s team to pursue certain angles—and the FBI to consider information provided by British spy Christopher Steele.

Testifying before a congressional subcommittee, Barr also backed the president’s claim that the Obama administration “spied” on his 2016 campaign.

Barr admitted he had no evidence to support this. Yet some observers felt his comment dog-whistled those who believe Mueller’s investigation is the continuation of a left-wing plot, enacted through governmental institutions, to sabotage Trump and his affiliates.

Barr has denied this is “an investigation of the FBI”, but stated he had to ensure “government power was not abused.”

Does Horowitz’s review help to invalidate scrutiny of the intersection between Trump’s business dealings and national politics?

Or is this standard judiciary practice, given the public attention—and funding—Mueller’s years-long investigation attracted?

Credit for this article's header image goes to Getty.