The only vested interest is equity in 80 years of rigid dogma against Russia.
Trump sees Ukraine as a failed asset bleeding cash that needs to be fixed.
Trump seeks a pragmatic solution, first to stop the killing and infrastructure damage.
Putin understands the existential threat to Russia from the US military-industrial-surveillance clique holding on to as much power as they can. When the Alternative Right succeeds in neutering the jewish neocons infesting American government, progress will be possible.