Press review: Europe seeks to block US-Russia thaw as Russia eyes role in US-Iran talks

How much verified proof exists for this claim

Signal only - unverified source

How intriguing or unexplained this claim is

The claim involves geopolitical dynamics with some uncertainties, such as the potential impact of Europe's actions and Russia's role in US-Iran talks, but it is based on a single source and lacks the complexity or multiple competing theories that would elevate it to a higher mystery level.