NEW YORK (AP) — New York's attorney general wants a chance to question Commerce Secretary Wilbur Ross under oath as part of a lawsuit over inclusion of a citizenship question on the 2020 census.

Attorney General Barbara Underwood asked a federal court in New York City on Monday for the right to depose Ross.

She was joined in the request by attorneys for the American Civil Liberties Union.

Several states and cities are suing the Commerce Department and the Census Bureau over a plan to add a question about citizenship to the census.

They say the question will discourage immigrants from participating.

Government lawyers say the design of the census questionnaire is not subject to judicial review. If a deposition is ordered, they say they will probably appeal.