It's in Romney's political interest to be seen to be considering one or more women on his short list, so even if he really has no intention of picking either Ayotte or McMorris Rodgers, it makes sense to vet them, and leak the fact that he's vetting them.
"War on women"
What do you mean to suggest?
That Republicans somehow hate women and want them all to be chained to their ovens and sinks, when in fact the GOP has many prominent women, and has nominated as many female VPs as the Democrats have. It's my belief that the first female Vice President will be a Republican.