Winn filed the paperwork Monday in Austin just before the deadline to enter the Republican primary in March.
Winn will have two contestants; Neugebauer and former “Mr. Conservative” blogger Dr. Donald May. May gave up his Lubbockonline.com blog in October to formally announce his candidacy.
In 2012 Winn challenged Neugebauer unsuccessfully. The margin was approximately 74% to 26% in Neugebauer’s favor.