Mont. Code Ann. § 13-25-201

Election of United States senators and representatives

(1) United States senators and representatives shall be elected at the general election preceding commencement of the term to be filled.

(2) Nominations and elections shall be as provided by law for governor.

Official source: Montana Code Annotated (Montana Legislature). Reproduced from public-domain Montana statutes; confirm against the official source for the current text. Not legal advice.