Rabbi Jason Klein became the first openly gay man chosen to head a national rabbinical association of one of the major Jewish denominations in the United States in 2013, when he was chosen as president of the Reconstructionist Rabbinical Association. He was also the first Hillel director to hold the presidency, the chief volunteer position of the organization. As of his election as president, Klein was the executive director of Hillel at UMBC, the University of Maryland, Baltimore County, a post he held from 2006 until 2013. He served as president of the Reconstructionist Rabbinical Association for two years—until 2015. In July 2013 he became the Director of the Center for Jewish Life at JCP Downtown, the Jewish Community Project of Lower Manhattan, where he served until 2018.