The U.S. Supreme Court heard oral arguments on Tuesday in a case that could determine how far employers must go to accommodate their employees' religious beliefs. The case centers around Gerald Groff, an Evangelical Christian and former rural carrier at the United States Postal Service. In 2013, the USPS contracted with Amazon to deliver packages on Sundays, which conflicted with Groff's beliefs. Despite attempts at accommodation, including offering to adjust his schedule and asking other workers to cover his shifts on Sundays, Groff faced disciplinary action and ultimately resigned in 2019. Groff sued the USPS for violating Title VII of the Civil Rights Act, but lower courts ruled against him. The Supreme Court will now determine if employers must provide reasonable accommodations, even if it poses an "undue hardship" on the business. Some conservative justices suggested that accommodating religious beliefs in the workplace could burden other workers and impose substantial additional costs on employers. The decision could have significant implications for religious liberty in the workplace.