[Serious] Is a limited nuclear exchange possible?

[Thumpalumpacus]

Is Biden even in the loop regarding a strike on the U.S.?  I wonder if they have standing orders.

My understanding when I was in the service was that our alert bombers could be launched for preparatory orbiting based on HQ USAF orders, but that positive offensive orders were based on "football" codes. I would imagine that with the missile forces the protocol was similar, that forces under command could be alerted and prepped, but that a football code was required to actually turn the keys.

That implies to me that the President must be involved in the final decision.