here's the wiki where the "dog incident" is discussed.
here's my take after reading all the interviews with the romney's their supporters and detractors: they seem to be lacking in remorse. they think the dog liked being strapped to the hood of their car for a 12 hour ride. even after the dog had diarrhea. they just hosed off the dog & car and kept on driving. they do not see anything wrong with this.
the dog ended up going to live with a family member because it kept running away from the romney's home. that says a lot.
i know dogs are not the most important thing in life, or in an election. but i believe that the way a person treats their family pet says a lot. it says enough to me.