I know they always receive ********* cards and reply to them (with generic ones, of course. I had an uncle who sent the president a card every year). I have no idea if they actually read them, or the suggestions they receive. If they do, I’d definitely say it’s not Obama reading them all. I bet he has a flock of little minion interns that are in charge of that stuff. It is possible some of them get through, though. I would say your best bet is to contact local representatives first, though. You normally have to start with the little guys and work your way up.