I'm not sure about Spain or the EU (US too, i'm talking abt my personal experience), though:
Politicians are inherently corrupt. There is no good politician, no matter how they act in public. They say what the mass wants to hear, not what they need to.
I do believe there are authentic, genuine politicans, but I'me I'm inclined to bellieve that politicians are worse than people believe. Politicians on the left are worse than people think, politicians on the right are worse than people think.
I believe that you are American, the ones I do trust at face value for moral consistency is Thomas Massey, Mike Lee, Chip Roy, and Louie Gohmert. Don't mistaken trust for full total agreement. It means their public statements is how they are alone in private.