The Supreme Court appeared sharply divided Tuesday over the legality of an ObamaCare mandate that requires employers to include birth-control in their employee health plans, leaving in limbo a crucial provision of the embattled healthcare law.  The case, ObamaCare’s second major test before the high court, pits the government against a pair of for-profit companies that argue their religious convictions should exempt them from the mandate requiring companies to offer workers birth control at no cost.  Republicans and Democrats are deeply divided on the issue.  A group of eight GOP House members, led by four women, said the Obama administration is "going after" religious business owners and organizations for beliefs that teach against certain forms of birth control.  Democrats fired back by saying that the mandate preserves a woman's fundamental right to make her own health choices.  In addition, The Supreme Court's liberals argued that a successful challenge to the mandate could pave the way for a flood of lawsuits from private firms claiming all manner of religious exemptions.  Justice Elena Kagan said companies could claim religious beliefs in arguing for exemptions from laws governing everything from child labor to sexual discrimination.