political parties enable electors to make judgments about just a few groups, and then apply their judgment of the party to all the candidates affiliated with that group.
Explanation:
Without political parties, electors would have to individually evaluate every candidate in every election.
Without political parties, electors would have to individually evaluate every candidate in every election. But political parties enable electors to make judgments about just a few groups, and then apply their judgment of the party to all the candidates affiliated with that group.