Challenges — Vermont Code § 2564

§ 2564. Challenges

• (a)(1)(A) Each organized political party, each candidate on the ballot not representing an organized
  political party, and each committee supporting or opposing any public question on
  the ballot shall have the right to have not more than two representatives for each
  voting district, in a polling place but outside the guardrail, for the purpose of
  observing the voting process and challenging the right of any person to vote. (B) In no event shall such representatives be permitted to interfere with the orderly
  conduct of the election, and the presiding officer shall have authority to impose
  reasonable rules for the preservation of order. (C) However, in all cases the representatives shall have the right to hear or see the
  name of a person seeking to vote, and they shall have the right to make an immediate
  challenge to a person’s right to vote. (2) The grounds of challenge of a person whose name appears on the checklist shall be
  only: (A) that he or she is not, in fact, the person whose name appears on the checklist; or (B) that he or she has previously voted in the same election.