One vote really does make a difference: In 1867 one vote save President Andrew Johnson from being removed from office. Presiden Rutherford B. Hayes was elected by one vote. Claifornia, Oregon, Washington and Idaho were all made states by one vote. Tennessee ratified the 19th ammendment, allowing women to vote by one vote. Richard Nixon, not JK Kennedy, would have become President in 1960 if one person from each voting place had voted differently.