It's a no starter and a total red herring ...

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Section 2 of Montana Code 2-16-603 reads: ?(2) A public officer holding an elective office may be recalled by the qualified electors entitled to vote for the elective officer?s successor.?

That pertains to a state elected or appointed officer.

Representatives and Senators are US Federal officers

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New Jersey's federal recall law was struck down when a NJ state judge ruled that "the federal Constitution does not allow states the power to recall U.S. senators ...

Better the issues of due process of this law be challenged;
US Constitution Fifth Amendment

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[n]or be deprived of life, liberty, or property, without due process of law; ...