Is it wrong to vote tactically?
Tomorrow will see the closest election in the UK for many years and there is considerable debate about whether tactical voting is acceptable (see here, here, here). This is a particularly big issue this election as the Liberal Democrats (the UK's third largest party) have had a significant rise in popularity and the vote looks to be split fairly evenly among the three parties. A three-party race causes significant problems for the 'first past the post' voting system used in the UK and the US, as it means that a party can win a seat even if 60% or 70% of the people in the seat think that it is the worst option. For example, suppose that a seat has the vote split as follows:
40% — Conservatives
38% – Liberal Democrats
22% – Labour
The Conservatives would win this seat even if they were the third choice of all the Liberal Democrat and Labour voters. In such a case, the Labour supporters might realise that they have relatively little chance of winning and that they can avoid a worst-case scenario by voting Liberal Democrat. Voting for a party that is not your preferred party is known as tactical voting and is quite contentious.