contestada

Read these sentences from the text.
“Before then [1845], states were allowed to hold elections any time they pleased within a 34-day period before the first Wednesday in December, but this system had a few crucial flaws. Knowing the early voting results could affect turnout and sway opinion in states that held late elections, and those same last-minute voters could potentially decide the outcome of the entire election.”

Based on this evidence, what was probably one of the “crucial flaws” in the voting system before 1845?