What is a model? “A model is a simplified representation of reality and does not constitute reality itself. The models purposely ignore some aspects of reality and focus on selected and interrelated sets of crucial factors” (Segal and Spaeth 2002). In this article I will discuss the three models and which model explains how judges behave best: the legal model, the attitudinal model, and the rational model. Justices in the legal model vote based on their preference, but when given the opportunity they would vote to overturn precedent because it doesn't fit their personal views. Aptitude model judges are given the best prediction on a given case to determine how to vote. The rational model is the last model that feeds on the other models. Judges in this model vote based on their preferences and not based on parties. I will describe how each model relates to each other. The legal model is the behavior of judges explaining the law while making decisions. Judges tend to make judgments based on past precedent. Judges adhere to the legal model for public consumption. J...