>1. Politician makes promises that he will fullfil if he gets elected.
>2. Politician gets elected.
>3. Politician 'sees the light' and does not only not fullfill his promises, but does a complete 180.

Now honestly ask yourself the question what your feeling was after a US president said "Read my lips. No more taxes" and once in office he could no hold that promise.

The fact is that often reality bite such promises in the butt.