My impression from Ray's congressional testimony was "FTX.us might be solvent, but we don't know yet because the forensic accountants are still chipping away". But I was only half focused and am not confident I remember correctly.
The gist of what was said, is that a lawmaker cited something about FTX.US being "98% solvent" and asked John for confirmation of this. John stated that he couldn't give any figures at the moment, but there was generally truth to the statement that U.S. customers would be hurt less than others.
Here's an article that touches on it.
https://www.bloomberg.com/news/articles/2022-12-13/ftx-s-us-...