From what I read Ann Romney is a pro-choice liberal and all her friends are Democrats. So they are attacking one of their own.
The left have for a long time hated motherhood. That is nothing new, I am surprised at the attention its been getting to tell the truth.
Matters not that she is one of them - she's married to the wrong side and she's as expendable as a Clarence Thomas. I believe the attention is just another divide/divert/conquer ruse. The more directions they can make for conservatives to "deploy" the more dilute the conservative message and the more intact the Left's agenda.