

Arguably Bernie got as many primary votes as he did (a good showing but a legitimate loss) because inside politics had cleared the field of more compelling challengers to Clinton. https://www.vox.com/policy-and-politics/2017/11/14/16640082/donna-brazile-warren-bernie-sanders-democratic-primary-rigged
It’s a war of attrition at this point, with Ukraine providing almost all the people to become casualties but highly dependent on foreign aid for weapons, ammunition, intelligence, and continued sanctions enforcement on Russia. If either the foreign support or the domestic supply of soldiers falls short before the Russian economy collapses, Russia gets to keep the occupied land. If the first break is the ruble tanks to the point desperate poor foreigners stop signing up en masse to be cannon fodder in the Russian army, Ukraine could realistically take back the territory they lost.