I had this idea for a story, it starts with a series of columns in the Guardian by a man, a cross between Charlie Brooker and George Monbiot. He makes a snide suggestion that the least intelligent 20% of the country should be denied the right to vote. Between him and the online commenters it begins to be less of a joke and they end up establishing a party with this aim.
The next thing that happens is that The Sun or someone starts a counter-movement, creating a party with the aim of denying the vote to the 20% of the population with the highest intelligence (I don't know how intelligence would be measured). And it would go on from there.
The reason I thought this story would be interesting is because I think a lot of people think they know best, and that the world would be better if stupid people couldn't vote, and I thought it would be interesting to see who would vote for what party, like whether they would each get an equal share of the votes, and whether the percentage that voted for the intelligent party would be the most intelligent people, or just the cockiest.
Anyway I thought it would all be a bit naff and heavy-handed.