Entities mentioned:
- Donald Trump: Ambition, Legacy, Power
- Vladimir Putin: Power, Security, Control
- Volodymyr Zelenskyy: Justice, Self-preservation, Unity
- Keir Starmer: Duty, Unity, Influence
- Emmanuel Macron: Influence, Unity, Duty

Article Assessment:
Credibility Score: 65/100
Bias Rating: 55/100 (Center)
Sentiment Score: 65/100
Authoritarianism Risk: 35/100 (Generally Democratic)

Bias Analysis:
The article presents multiple perspectives, including those of Trump, Putin, and Zelenskyy, providing a relatively balanced view. However, there's a slight emphasis on Trump's role and optimism about the peace process, which could indicate a subtle center-right lean.

Key metric: International Diplomacy Effectiveness

As a social scientist, I analyze that this article presents a significant shift in the approach to the Russia-Ukraine conflict, with Trump positioning himself as a key mediator aiming for a comprehensive peace deal rather than a ceasefire. This approach could potentially impact international diplomacy effectiveness by bypassing traditional diplomatic channels and leveraging personal relationships between leaders. The involvement of European leaders suggests a coordinated Western approach, but the effectiveness hinges on Putin's willingness to participate in a trilateral meeting and make concessions. The article implies a potential breakthrough, but the long-term sustainability of any agreement remains uncertain given the complex security concerns and historical context of the conflict.