Public opinion research has suggested that the negative impact of scandals on public evaluation of the politicians involved is not always strong. Part of the reason is that people may hold varying perceptions regarding the nature, factuality, and importance of the scandals. According to the theory of motivated reasoning, people develop varying perceptions by processing information in ways that reconfirm their existing views. This study applies such insights to analyze how citizens react to political scandals surrounding government leaders in Hong Kong, where such scandals have arguably become increasingly prominent in recent years. This study constructs a theoretical model linking prior political attitudes, scandal-related perceptions, response evaluation, and evaluation of politicians. Analysis of survey data confirms most of the hypotheses in two cases. External efficacy and support for democracy substantially influence perceived factuality and acceptability of the scandals. Such perceptions shape people's evaluations of the responses by the government and the officials involved, which in turn affect evaluation of the officials.