Entities mentioned:
- Donald Trump: Power, Control, Legacy
- Trump voters: Loyalty, Wariness, Anxiety
- Kamala Harris: Ambition, Duty, Recognition
- University of Massachusetts Amherst: Curiosity, Professional pride
- Republican Party: Unity, Power, Control

Article Assessment:
Credibility Score: 75/100
Bias Rating: 40/100 (Lean Left)
Sentiment Score: 35/100
Authoritarianism Risk: 20/100 (Strongly Democratic)

Bias Analysis:
The article leans slightly left, focusing more on potential Trump voter regret than on positive aspects of his presidency. However, it attempts balance by acknowledging the limitations of the data and providing context for the findings.

Key metric: Voter Satisfaction and Political Stability

As a social scientist, I analyze that this article highlights a potential shift in voter sentiment among Trump supporters, which could significantly impact political stability and voter satisfaction in the US. The data presented suggests a growing disillusionment among some Trump voters, with factors such as policy decisions, handling of the Epstein files, and general performance contributing to this trend. This shift, while not dramatic, could have long-term implications for political allegiances and future electoral outcomes. The article's use of multiple polls and data points strengthens its argument, though it's important to note that voter regret is still a minority sentiment among Trump supporters.