Is DC now your main, primary home (your domicile in tax terminology), or is your domicile still in LA and your stay in DC temporary for the purpose of attending school?
If LA is still your domicile state and you're in DC temporarily to attend school, then you will file your LA tax return as a full-year resident and you need not file a DC return. You are considered a non-resident of DC. DC does not tax non-residents.
If DC is now your new domicile state, then you file as a part-year resident in both states.
If LA is still your domicile state, but you maintained a place of abode in DC for 183 days or more of the tax year, then you have a situation of dual residency* and you must file as a full-year resident in each of the two states.
https://otr.cfo.dc.gov/page/individual-income-tax-filing-faqs
*A dual resident is a person who is both a domiciliary resident of one state and a statutory resident of another.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
