What signs indicate a growing rift between the US and Europe regarding Ukraine?

Signs of a rift between the US and Europe became evident through comments made by several US officials. These included statements from the Secretary of Defense in Brussels, Vice President J.D. Vance, and special Russia-Ukraine envoy General Keith Kellogg in Munich, as well as Donald Trump himself following his lengthy phone call with Vladimir Putin. These developments have effectively dampened hopes for US-Europe collaboration on Ukraine's future. The transcript suggests a significant shift in diplomatic approach, with the US potentially pursuing discussions with Russia independently, without European representation, creating tension in the transatlantic alliance supporting Ukraine.