Why are Obama supporters such h8ters?

Case in point

My son just got done with a 4 week (twice a week) swim course. The first week or so, this one mom was really friendly. About a week and a half into the course, I was having a conversation with one of the children's grandmother and we were talking about Obamacare. I prolly made my position rather well known.

The following lesson, the friendly mom wore this rather hideous Obama t-shirt, and since then has not only not said a word, but basically ignored me.

Nice.