When politicians are elected and have careers where they are known to lie and it is accepted of them, and then they continue and reach important offices, the expectation of truth anywhere in public information and news gets reduced to basically zero. There might be some truth in there but it could just as well be lies, basically. Only when politicians have built their careers on honesty do they actually lose something when they actually do lie. And in a context where most other politicians also have built their careers on honesty and integrity. When the entire political body is just filled with people known to lie and game, and it is accepted, what chance do you have of getting any truth anywhere?