One vote can decide an election, and does, over and over and over again. The Public Interest Legal Foundation has collected information on hundreds of elections in which there were tied votes — elections where a single vote would have changed the outcome.
Nobody can say election fraud doesn’t matter.
Take Osceola, Iowa’s mayor’s race in 2021. The election ended in a tie. Under Iowa law, the winner of a tied election is decided by a lottery. Both candidates’ names were written on pieces of paper and thrown into a candy dish. Mathew Stoll was the lucky candidate whose name was pulled out.