Final answer:
The KKK marches in the early 1900s were aimed at suppressing African American voters and maintaining white supremacy.
Step-by-step explanation:
The Ku Klux Klan (KKK) marches held before elections in the early 1900s had several intimidating purposes, chiefly among them being voter suppression targeted at African Americans and those who supported Reconstruction efforts. The KKK aimed to prevent racial minorities from participating in the political process, utilizing various strategies including but not limited to violence, intimidation, and murder. These demonstrations were part of a broader campaign of terror and disenfranchisement that included literacy tests, poll taxes, and other tactics to maintain white supremacy and restore Democratic political dominance in the South.