The National Aeronautics and Space Administration job, which is based in Washington, D.C., requires Senate confirmation and involves overseeing an estimated $20 billion budget as well as the agency's financial operations.
By joining President Donald Trump's administration, DeWit, who was chief operating officer of Trump's presidential campaign, ends speculation about his political future, including a potential run for Arizona's open Senate seat.
The 44-year-old Peoria resident said accepting the nomination wasn't an easy decision.
“However, when the president of the United States asks you to serve your country, it is my duty to answer the call.”
"Since the conclusion of last year's presidential election, there has been much speculation as to what my future was going to be, and my response has been and remains that I truly love Arizona and my current role as state treasurer," DeWit said in a statement. "However, when the president of the United States asks you to serve your country, it is my duty to answer the call."
