One Issue Could Make Or Break A Vote

Over the high holidays, many families get together and catch up on their lives. They talk about after school activities, piano recitals, politics, etc. Recently though, politics has been the most pressing issue with most of my above-age-21 family members. They are all deciding on who to vote for! I feel like it would be such a hard choice to choose who to vote for mainly because there are so many issues a candidate must have a strong opinion on. The reason I'm writing this post is to bring up the idea of people voting for a candidate just because of one the candidate's many ideas. Is it fair to like all but one of a candidate's ideas and then vote for the other? I guess it depends how important that ONE issue is to the voter. I know that one family member of mine has a strong opinion about the idea of being pro- choice and of women having abortion rights. President Obama has a clear position that he supports abortion rights, while Romney has a muddled position on if he supports them. He opposes the abortion rights but he previously supported them. In my opinion, this was a sly move on Romney's part, because considering that humans make mistakes and change their minds, this is too big of an issue to change his mind on when millions of people consider that as part of their voting for him / or President Obama. Whether the issue is terrorism, national debt, or even immigration, a voter must be very very knowledgable on who they are voting for and WHY. Each individual has different opinions on what is more important to them and they should be well educated on what stance their candidate has on that issue. This should be an extremely interesting voting year.