Biden basically said we have the capability to use chemical weapons, which I don't think we actually have. Bush renounced chemical weapon retaliation; Biden reversed that this weekend, but I think that was unintentional on his part. He likely didn't know that we cannot do it, and likely didn't know that our policy is to retaliate with nukes if our soldiers are hit with a chemical attack, and not retaliate with chemical weapons. But, he certainly opened the door for the Russians to claim that we have that capability to use chemical weapons.
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