donkey vote

noun

1. a vote on a preferential ballot on which the voter's order of preference follows the order in which the candidates are listed

Example Sentences

This windfall is called the “donkey vote,” and it will give Donald Trump a significant advantage in the must-win state come November.

From Slate

Voters are compelled to appear at the polls, but they can cast a blank or marred ballot as a protest known as a “donkey vote.”

From Seattle Times