Final answer:
The question is about the reelection success rate of incumbent presidents, which is a Social Studies topic, specifically in political science. Voter satisfaction and approval ratings, like those observed during President Obama's term, play a role in influencing these rates. Historical data is necessary to determine the exact success rate of incumbents.
Step-by-step explanation:
The question refers to the reelection success rate of incumbent presidents. This is a topic that falls under Social Studies, specifically within the realm of political science or history, as it deals with electoral outcomes and patterns in US presidential elections.
The reelection success rate of incumbents is an indicator of political stability, voter satisfaction, and the ability of a president to maintain support over their term. Over the course of 30 elections in which an incumbent president sought reelection, the success rate would be calculated by determining the percentage of those elections in which the sitting president was reelected. While the student's question does not provide the exact success rate, such data can be found through historical records of U.S. presidential elections.
Presidential approval ratings, as well as voter satisfaction with presidential candidates, are factors that can influence an incumbent's chances of reelection. For instance, it's been observed that approval ratings tend to decrease over time. Despite starting with an average approval rating of 66 percent, it typically drops to about 53 percent by the end of a president's first term. President Obama's approval ratings follow this trend, beginning at 67 percent and declining over the course of his presidency.
Historical voter satisfaction rates show that a significant portion of the electorate often express their dissatisfaction with the candidates. For example, in the 2016 US presidential election, 46 percent of Republicans and 33 percent of Democrats were not satisfied with either of the major-party candidates. These figures are indicative of the broader challenge that incumbents face when seeking reelection amidst fluctuating voter satisfaction.