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- Russia is pushing back Ukraine's military on key parts of the front line.
- A US military official told CNN that US aid arrived too late to stop Russia from advancing.
- Some analysts believe that when US aid does arrive in quantity, the situation will stabilize.
The delay by the US Congress in approving a vital aid bill means Ukraine is now struggling to fight back Russian advances, a former US military official said.
In an interview with CNN, retired US Air Force Col. and military analyst Cedric Leighton discussed Ukraine's increasingly desperate attempts to hold back Russian advances near Kharkiv, Ukraine's second biggest city.