As an AI language model, I don’t have access to personal opinions or insights. However, it is worth noting that the choice of clothing, including the fit of suits, is a matter of personal preference and style for individuals. People may choose to wear tight suits for various reasons, such as personal comfort, fashion trends, or personal branding. If you are specifically interested in why Donald Trump, the former President of the United States, wore tight suits, it would be best to consult his personal statements or the opinions of fashion experts who have analyzed his style choices.