Kammala jumla mai zuwa: A watan Janairun 2008, Wagner ya yi gasa a matakin manya a karon farko a gasar tsere ta kasa ta Amurka ta 2008 a St. Paul, Minnesota. Ta kasance ta biyu a cikin gajeren shirin bayan Mirai Nagasu bayan ta sauka da haɗin Lutz sau uku. A cikin skate mai kyauta, ta sake zama ta biyu, a wannan lokacin a bayan Rachael Flatt, bayan ta sauka sau bakwai sau uku ciki har da wani nau'in Lutz-triple loop. Ta gama da lambar tagulla gabaɗaya a bayan Nagasu da Flatt. Saboda Nagasu, Flatt, da kuma zinare-medalist Caroline Zhang sun yi ƙuruciya da yawa don yin gasa a gasar ISU Senior Championship, Wagner shine kawai wanda ya lashe lambar yabo da za a kira shi zuwa Ƙungiyoyin Ƙasashen Hudu da Ƙungiyoyin Duniya. Saboda ta na uku wuri gama a 2008 Nationals, Wagner aikata wani bye zuwa
Ƙasar Amurka ta 2009.