The Republican Party’s supermajority on the Supreme Court was barely a month old when the justices handed down one of the most consequential religion decisions of the last several decades. It was Amy Coney Barrett’s first significant vote as a justice.The issue in Roman Catholic Diocese of Brooklyn v. Cuomo (2020) was whether churches and other houses of worship were exempt from Covid-era restrictions on attendance. At the height of the pandemic, New York imposed strict limits on how many people could attend worship services at the same time — a rule that steered straight into the emerging partisan divide...