Withdrawing support for Ukraine has become a major political issue in both the U.S. Congress and now on the presidential campaign trail, and it is causing divisions as well in European capitals.
Operationally, the potential seizure of Kupiansk is significant as it shows the continual pressure that Russia is exerting along a nearly 600-mile front.
Unfortunately, I think Russia is in better shape than is broadly believed, and certainly in better shape than Ukraine