@bythewell - Unfortunately, the world doesn't work like that. If I was a politician and I had to vote for something that I had made clear that I felt strongly about, I would vote with my conscience.
As long as I had been truthful and hadn't been spouting one thing and intending to vote another, I don't see anything wrong with that. If my party doesn't like it, they can tell me to get lost.
People compromise too much when it comes to politics. They try to please everyone and end up pleasing no one.
I would rather stick to my own ideals. Either people would want me in power, or they wouldn't, that's the whole point of elections in the first place.