Get all votes attached to a CandidateElection for a Candidate in
        this election.

def get_candidate_votes(self, candidate):
        """
        Get all votes attached to a CandidateElection for a Candidate in
        this election.
        """
        candidate_election = CandidateElection.objects.get(
            candidate=candidate, election=self
        )

        return candidate_election.votes.all()