Because it causes bread to rise. Clinton is the bread in this case.
Once wonders if this acronym was formed over an insinuation about women baking bread in the kitchen. Probably not, as Hillary is the last person to be in the kitchen as are like the women involved with this organization.
Imagine if there was a male counterpart. Or a "white" counterpart. What's creepy about this is that it's outrageously sexist.
Haven't you heard? HIllary just loves baking up a batch of fresh, homemade cookies for Bill. Seriously. She said that.