"Commercial paper" is a loan, an IOU --- not hard currency/assets.
You can't have your dollars and loan them to others too. If I give Donald Trump an unsecured loan for $1000, I can't "legally" claim to still hold the $1000 in cash.
The idea that an unsecured IOU is without risk and is worth just as much as dollars in hand is pure fantasy. Yet all the exchanges collectively peg USDT at $1.
https://www.wsj.com/articles/tether-says-massive-reserves-he...