But senior figures argue that people will respect a political menu with prices. Schools and hospitals haven't got better because Labour have lacked the courage to invest more. Out campaigning, the Liberal Democrats put the focus on public services. I neither condemn nor condone tactical voting. I call it intelligent voting.
General elections give third parties their chance.
They get a degree of attention which simply does not come their way at other times. They know they're not going to form the next government. But they believe they can influence the national debate. Pages will open in a new browser window External sites are not endorsed by CNN Interactive.