Affective Forecasting

In one of my classes we were discussing affective forecasting. It dealt with how people felt about certain things and whether they would guess right when attempting to make guesses as to how they would feel in the future. In one of the experiments it showed that people tend to look at the differences when making a decision and use that to telll whether they'd be happier in the future. So if I were choosing two homes and decided to pick one because it had a bigger yard, I'd choose that one because I think in the future it would make me happier. What the results showed though was that people more often than not don't accurately predict their future happiness. In fact, the people in the experiment ended up being more or less just as happy with their decision. You're probably wondering what this has to do with anything but my point is will people accurately predict which President will make them happier?