After attempts at compromise failed, the LCMS president, Jacob Preus, moved to suspend the seminary president John Tietjen, leading to a walkout of most faculty and students, and the formation of Seminex. Seminex existed as an institution until its last graduating class of 1983 and was formally dissolved and merged with Lutheran School of Theology at Chicago in 1987. Concordia Seminary in St. Louis quickly rebuilt and by the late 1970s had regained its place as one of the largest Lutheran seminaries in the United States.