U.S. wants to "put pressure on Ukraine" to end war, former ambassador says
The U.S. may have intentionally withheld warnings to Ukraine of the Russian attack that killed six people and cut power to over 600,000, sources tell CBS News. Former U.S. Ambassador to Ukraine William B. Taylor shares his thoughts.

<p>The U.S. may have intentionally withheld warnings to Ukraine of the Russian attack that killed six people and cut power to over 600,000, sources tell CBS News. Former U.S. Ambassador to Ukraine William B. Taylor shares his thoughts.</p>