Since 1982, DeVos has participated in the Michigan Republican Party. She served as a local precinct delegate. She was a Republican National Committeewoman for Michigan between 1992 and 1997, and served as chairwoman of the Michigan Republican Party from 1996 to 2000. DeVos resigned the position in 2000. She said in 2000, "It is clear I have never been a rubber stamp... I have been a fighter for the grassroots, and following is admittedly not my strong suit."