What does that have to do with Carly? She's not taking a single vote from Cruz - hell, she's probably bringing some people to the GOP table to take a look. If she "takes away" from anyone, it would be the more liberal Republicans.
And in the big picture, she's doing all of us a favor. She's hitting Hillary where Cruz nor Paul nor Walker can - in the girlie pants. Those points she's scoring now will be on the board for whoever wins the nomination. And she'll make it easier for other Republicans to slam Hillary as well.