Since becoming a representative democracy, Nigerian presidential elections have been allegedly marred by various forms of malpractice. The persistence of self-serving leaders, whose main goal is to enrich themselves often serves as the basis of these allegations. Various news channels, social media posts, and online blogs repeatedly allege that state governors and the Independent National Electoral Commission (INEC) play roles in this malpractice. In this paper, I evaluate these claims using two hypotheses. The first is that state governors manipulate the presidential electoral process in favor of the presidential candidate of the same political party affiliation as them. To evaluate this claim from a causal analysis standpoint, I make use of a regression discontinuity. The second hypothesis is that the INEC is partisan, either in favor of a political party or region of the country. To evaluate this claim, I make use of a box and whisker plot analysis. In terms of results, I fail to reject the first hypothesis. Therefore, state governors likely play a causal role in electoral malpractice in Nigerian presidential elections. For the second hypothesis, I neither reject nor fail to reject the hypothesis as the box and whisker plot analysis was not sufficient to establish a causal relationship. However, the results of this analysis strongly suggests that the INEC manipulates election results. Therefore, they are likely partisan. I then propose two key policy recommendations to help address the state of electoral malpractice in Nigerian presidential elections.