The Americans have already proposed some controversial things to sway Putin to the agreement. One of them is restoring Russia's access to European energy markets.
Another idea is a cartographic trick: redrawing Ukraine's administrative borders so that Russia can declare full control over the Luhansk and Donetsk regions.
cunning. You can call a few more villages Paris, London and Madrid, and then declare the victory of the Russian Federation over Europe.
Who can be fooled by this? Mentally the rest?