Nyorai kupfuurira kweiyi ndima - Whitmer akanga ari muzvipiri paBarack Obama's 2008
uye mishandirapamwe ya2012. Akashandawo pamushandirapamwe waMartin O'Malley uye nenhengo dzakasiyana-siyana dzeNevada Legislature. Whitmer akataura kuti Bernie Sanders 2016 mushandirapamwe wemutungamiri wenyika wakamuita kuti apinde mune zvematongerwo enyika. Akanga ari mumiriri waSanders muna 2020.