I have a client who is in the military, a resident of Wisconsin, and stationed in CA.  In 2022, he married a girl that is a CA resident.  She has no earned income, and her children are getting Medical benefits from CA.  I think they plan to stay in CA once his service is complete, but this is still undetermined.  Would the correct filing be federal and WI with WI being their primary domicile?  Or should we file Federal and both states keeping WI their domicile?  Or lastly, since she is a resident, are they both now considered CA residents?