As the Senate begins hearings on the nomination of Judge Amy Coney Barrett to the U.S. Supreme Court, Democrats are hoping they can get Barrett to express an opinion on health care, particularly her view of Affordable Care Act, birth control and abortion. Barrett's personal or political views on these matters are, of course, irrelevant. But don't expect Barrett to indicate how she might vote in a particular case on these matters either. To do so would violate judicial ethics.