WASHINGTON (AP) — The Supreme Court has turned away a Christian university's attempt to overturn a key part of the Obama administration's health care law. The justices did not comment Monday in leaving in place a federal appeals court ruling dismissing Liberty University's lawsuit. Liberty made several arguments in challenging the portion of the health care law that requires most employers to provide health insurance to their workers or pay a fine. The 4th U.S. Circuit of Appeals in Richmond, Va., rejected those claims. The Supreme Court separately is considering whether for-profit corporations can mount religious objections to the law's requirement to include birth control among preventive health benefits.