Mark Quandahl of Omaha has submitted a letter announcing his resignation from the Nebraska State Board of Education.
Quandahl has served on the board since 2009, when Gov. Dave Heineman appointed him to the 2nd District seat vacated by the resignation of Kerry Winterer.
Quandahl, a lawyer and former chairman of the Nebraska Republican Party, could not be reached for comment Thursday.
Officials with the Nebraska Department of Education confirmed receipt of the letter.
Nebraska Commissioner of Education Matt Blomstedt said state board members would likely consider accepting Quandahl's resignation at their next meeting.
In 2012, Quandahl ran unopposed and won election to his seat on the board.
From 1999 to 2005, he served as a Nebraska state senator in the 31st District, in Omaha. He was party chairman from 2005 to 2009.
Heineman will again be responsible for appointing a replacement, Blomstedt said.
The district includes Cass, Saunders and Washington Counties, as well as parts of Douglas and Sarpy Counties.