Is USDT backed by the US government?

Excuse me, could you clarify something for me? I've heard some discussions about USDT, and one of the points raised is whether or not it's backed by the US government. Now, as a professional in the field of cryptocurrency and finance, I'm aware that not all digital currencies are issued or guaranteed by governments. So, could you please shed some light on this? Is USDT indeed backed or guaranteed by the United States government, or is this a misconception?