Mont. Code Ann. § 13-35-203
13-35-203 Interference with election officials or election workers
13-35-203 . Interference with election officials or election workers. A person who, in any manner, interferes with the election officials or election workers holding an election or conducting a canvass so as to prevent, obstruct, impair, or hinder the election or canvass from being fairly held and lawfully conducted is guilty of obstruction of a public servant and is punishable as provided in 45-7-302 .