I ended up calling TT and spoke with someone. I shared my screen and she found that TT didn't completely import my W2 from Fidelity. TT skipped the import for boxes 15, 16 and 17. Once I corrected that, the error went away.
The box only allowed a 2 letter state designation. So CA was the correct thing to put in the box, TT just didn't recognize it. This was a TT error which I then had to correct.
Thank you!
