I read a short story, by Isaac Asimov, I believe, in which the presidential election process is so far calculated that it only takes one person to vote.
I would LOVE to know the name of this short story!!!
I also read this story as a kid. Looks like it is "Franchise"
In the future, the United States has converted to an "electronic democracy" where the computer Multivac selects a single person to answer a number of questions. Multivac will then use the answers and other data to determine what the results of an election would be, avoiding the need for an actual election to be held.
The story centers around Norman Muller, the man chosen as "Voter of the Year" in the 2008 U.S. presidential election. Although the law requires him to accept the dubious honour, he is not sure that he wants the responsibility of representing the entire electorate, worrying that the result will be unfavorable and he will be blamed.