When my Grandmother was alive she used to place her Christmas card from Bill & Hill in front of my DH's dinner plate.

Everyone else got a regular place card and he got to stare at Bill & Hill while my Grandmother would sit at the end of the table and gloat, she was not quiet about it either! It became quite the family joke and we all still laugh about it!
My cousin who is 25 is very liberal, she recently finished her Masters in Journalism and she makes my DH nuts.

They have great discussions which is fun since my DH is kinda anti-social and no one else in the family ever wants "to go there" with him. My cousin walks in the door with the "bring it on attitude" and they go at it(nicely) it is kinda funny.
When I was growing up my parents were split and I still remember the tension they could create over who voted for who.

My Mother voted religion and my Father voted liberal plain and simple, I personally don't think either one of them were "educated" voters they were emotional voters but they did always vote.
My Bro is very Republican and my SIL while conservative is leaning towards Obama, my Bro is having fits. She and my DS had a great discussion at Christmas, my DS is convinced Obama is the anti-christ

and my SIL who is a High School English/History teacher educated him on some of the issues. They had a great conversation while my Bro and DH sat in the corner and squirmed
Yet another point our DS's share in common

funny how similar they are in so many ways.