It has become a normal habit among politicians. There second name should have been liers. In my country people sees politicians as liers, cheaters, promise and fail, deceptive and untrusted set of people who do anything for power and that is truely what they are.
Politicians have such a bad track record that most people don't believe them anymore. People resist being gullible against these flowery words of those politicians. I have met many people saying that they no longer care for politics because it's all useless as politicians only care about themselves.
They can do anything for power and when they get there they don't recognise the subjects that brought them to such place.
Politicians will say anything to be appointed but do not even believe that they will make their promises 100% true.