What did the "one man-one vote" principle advocate for?

The principle of "one man-one vote" advocates for equal voting rights for all citizens, emphasizing that each individual's vote should carry the same weight in elections. This concept emerged as a response to practices that diluted the voting power of certain groups, particularly in the context of the civil rights movement and challenges to voter discrimination. It highlights the importance of ensuring that every citizen, regardless of race, socioeconomic status, or other factors, has an equal voice in the electoral process. The principle was crucial in shaping policies and legal rulings that aimed to protect and expand voting rights, reinforcing the foundation of democratic representation.