Putin saw the Keystone cancellation as an opportunity to invade the Ukraine. Europe would need his pipeline and would not fight him. Biden, being weak and corrupted, wouldn’t give him trouble. This war and the costs in material and life can be squarely laid at Biden’s feet.
Biden’s War on Energy increased oil prices so Putin in his great wisdom and experience could afford to invade Ukraine. Biden’s ill advised War on Energy and spending spree unleashed the worst inflation in decades. Most American are clueless to the cause of our inflation.