There is no harm you can see a politician being truthful, if there are truthful that means they are not politician, I've been hearing most people saying that politics is a dirty game, so you can never expect a politician to speak like a pastor.

But did you guys know that most politician actually truthful? Most of them are very good depending the country they are belonging, most corrupt country can never produce a truthful politician, you can only find a truthful politician in a country that respect the rule of Law In their  country