What did the Boarder Ruffians contribute to the Bleeding Kansas problem?

Border Ruffians were pro-slavery activists from Missouri who crossed into Kansas during the mid-1850s to influence the territory's stance on slavery. Their violent tactics, including intimidation and voter fraud during elections, escalated tensions between pro-slavery and anti-slavery factions. This contributed significantly to the "Bleeding Kansas" conflict, as clashes erupted between these groups, leading to a series of violent confrontations that foreshadowed the broader national conflict over slavery. Their actions exemplified the intense polarization of the era and highlighted the deep divisions within American society.