Kristin Hickman is no longer working with the White House’s Office of Management and Budget after being hired last year to strengthen its tax expertise.

Hickman, a law professor at the University of Minnesota who specializes in tax administration and administrative law, confirmed in an email to Bloomberg Tax that she wrapped up her time at OMB’s Office of Information and Regulatory Affairs in April. OIRA announced around the same time last year that it had selected Hickman...