The Stonebreaker (a YA fantasy novel)
In this origin story, an aspiring politician in middle school aims to be class president, but as a demonic force slowly possesses her body, limb by limb, and coerces her to be attracted to evil things, Gryffin and her friends must find a way to reverse its power. In the end, instead of the demonic forces possessing Gryffin, it is Gryffin who possess the demons!
