Mealey's (January 23, 2019, 10:17 AM EST) -- WASHINGTON, D.C. — The U.S. Supreme Court on Jan. 22 denied a petition for a writ of certiorari filed by a former Wichita, Kan., prosecutor seeking a ruling on whether a plaintiff must prove in a Title VII of the Civil Rights Act of 1964 retaliation case that retaliation is the but-for cause rather than a but-for cause (Mary McDonald v. City of Wichita, No. 18-662, U.S. Sup.)....