He was appointed to the position by Governor Sarah Huckabee Sanders on August 3, 2023, after his predecessor, Mark Lowery, died of a stroke.
[2] In 2003, Walther was appointed director of the Arkansas Economic Development Commission (AEDC) by then-governor Mike Huckabee.
[3] In 2008, he was nominated and confirmed as the director of the U.S. Trade and Development Agency (USTDA) by then-president George W.
[3] In 2011, Walther served under a second president when he was nominated and confirmed to serve on the board of directors for the Export-Import Bank of the United States by Barack Obama.
[3] On August 7, 2023, Walther was sworn in as the state treasurer of Arkansas.