She serves as a Republican member for the 12th district of the Arkansas House of Representatives.
[2] Duke served in the Gravette School Board for six years.
[3] In May 2022, Duke defeated Jason Maxwell in the Republican primary election for the 12th district of the Arkansas House of Representatives, along with Jay Oliphant.
[4] In June 2022, she defeated Oliphant in the Republican primary runoff election.
[5] In November 2022, Duke defeated Michael Gill in the general election, winning 76 percent of the votes.