The following post originally appeared on the TIME Moneyland blog.
Initially, the controversy over President Obama’s proposal that all insurers cover contraception focused on religious liberty. After polls revealed that 98% of sexually active Catholic women have used birth control, though, some who oppose Obamacare tried to shift the argument from religion to money: “If insurers are forced to offer contraception without co-pays,” they warn, “they’ll hike our insurance premiums.” But will that actually happen?