U.S. Attorney General Jeff Sessions should have no business — none! — taking part in any investigation of a growing crisis regarding Michael Flynn, the Russians and whatever else might emerge.

Sessions needs to hand this probe over to an independent investigator, wash his hands of it and let the hounds loose on their hunt for the truth. They need to find out the whole truth about who knew what, when and how much regarding the former national security adviser’s contacts with the Russians. They need to get to the bottom of whether Flynn was acting as a lone wolf or whether he was doing the bidding of someone higher up on the chain of command.

Why must the AG recuse himself? Well, Sessions is biased in favor of Donald J. Trump and his administration.

He was the first U.S. senator to endorse Trump’s candidacy for president.

Sessions gave a glowing nominating speech on Trump’s behalf at the Republican National Convention.

The senator served as an adviser to Trump throughout his winning campaign.

He and Trump are friends, allies and have essentially been joined at the proverbial hip for years.

Sessions needs to surrender this probe to an independent investigator. Congress needs to have a hand in it, but only to accept or reject the investigator’s findings.

As for Sessions. Stay away, Mr. Attorney General.