The word is out: Former national security adviser Michael Flynn is trying to obtain immunity from criminal prosecution in exchange for what he knows about the Donald Trump presidential campaign and its possible relationship with Russian government officials.

The retired Army lieutenant general and his lawyers are dickering with congressional intelligence committees — in the House and the Senate — over an immunity deal.

Hmmm. Whether to grant it or not. My gut tells me that will depend on what he has to tell senators and House members and their investigators.

Flynn was forced to resign as national security adviser after he admitted to lying to Vice President Mike Pence and others about whether he talked to Russian officials during the 2016 presidential campaign.

At issue is whether Russian officials hacked into our electoral process seeking to influence the outcome in Trump’s favor — and whether the Trump campaign colluded with the Russians in any way, shape or form.

The story doesn’t end there. It is now threatening to swallow up the president himself.

Flynn’s request for immunity might suggest — at least it does to me — that he might be able to tell congressional investigators some highly valuable information about what the president knew, when he knew and how he reacted to whatever he might have learned.

Flynn could turn out to be a tiny minnow in a net full of much bigger fish if he gets the immunity he is requesting.

I find it fascinating to the max that he has been so quiet for so long after leaving the Trump administration just 24 days on the job as the president’s main man on national security.

He’s gone. Then again, he might return in a major way if House and Senate committee chairmen decide to grant him immunity.

Talk to us, Gen. Flynn. Many millions of us are waiting to know the truth about your former boss — given that he won’t tell us himself.