Sauer was solicitor general of Missouri from 2017 through 2022 under Republican Sens. Josh Hawley and Eric Schmitt, when they each served as Missouri attorney general. Sauer served as a federal prosecutor for five years and spent time in civil practice at boutique law firms, including the firm he founded, the James Otis Law Group. Sauer has first-chaired many jury and bench trials, and served as lead counsel in many appeals. Mr. Sauer served as a law clerk to Justice Antonin Scalia of the U.S. Supreme Court and Judge J. Michael Luttig of the U.S. Court of Appeals for the Fourth Circuit. He was a Rhodes Scholar and a magna cum laude graduate of Harvard Law School. After leaving the Missouri Attorney General’s Office in 2023, Sauer has made substantial donations to anti-abortion causes in the state. This year, he contributed $777,000 to Missouri anti-abortion groups, including $277,000 to two groups that opposed a ballot measure to enshrine abortion rights in the state constitution.