I hate to mention him, but what about Gov. Arnold Roidboy?
The Governator??? You know, I thought about him.  Recently he's passed some good stuff, although he made some mistakes with hydrogen.  I think we need to wait and see if his colors have truly changed, but I'm open to his membership consideration.
the scale gets slippery, doesn't it?
something tells me if you want a real list with real people really committed, that list will be blissfully mercifully short, and you'll easily fit it on one bumper sticker

a politician's no.1 priority is getting (re-)elected
a conscience, if present, comes way behind that, let alone responsibility for constituents, unless they belong to a majority

some EU politicians speak out louder on certain issues, such as energy and environment, than their US counterparts, but that is just because the polls tell them it enhances their "inclusive vote-fitness"

and then you find out they lie

Yes...well...getting even some comment about energy issues or PO from US politicians is astounding.  So that's where I'm starting.  It's really all I have to go with right now.

The next step will be making sure they take action on their words.

Great journeys start with just one step.  That first step can be the hardest one to take.

the scale gets slippery, doesn't it?

Sure it does...this won't be easy.  But, things worth fighting for are rarely easy.