Staking in the US is back on Kraken!

https://blog.kraken.com/product/staking/new-us-staking

Starting today, clients residing in eligible states will be able to securely stake eligible tokens via Kraken Pro. These clients will be able to participate in bonded staking, which locks up/bonds cryptoassets to the network for a specific period of time.

Kraken delegates staked assets to validators, which then handle transaction validation and block production. These validators then pass back rewards, minus fees, to clients who have staked their assets with that validator.