"The work in Texas was on site, why would MN get to tax Texas income?"
If your main, primary home (your domicile in tax terminology) is in MN, then ALL your income is taxable by MN, regardless of where you earn it.
Other, non-resident states (with an income tax) may tax income you earn by working within their borders.
You will be able to claim a credit on your MN return for tax paid to non-resident states, so you won't be double-taxed.
Your domicile does not change until you abandon it and establish a new domicile in another state. You can have only one domicile state at a time.
Here are MN's rules on how it determines tax residency:
https://www.revenue.state.mn.us/income-tax-fact-sheet-1-residency
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
