David J. Kramer: U.S. foreign policy comes home to roost with Russia’s action in Ukraine

 President Obama faces the gravest challenge of his presidency in figuring out how to respond to Russia’s invasion of Ukraine. How he responds will define his two terms in office, as well as determine the future of Ukraine, Russia and U.S. standing in the world. After all, if the authoritarian tyrant Vladimir Putin is allowed to get away with his unprovoked attack against his neighbor, a blatant violation of that country’s sovereignty and territorial integrity, then U.S. credibility, already damaged by Obama’s poor handling of Syria, will be down to zero. Allies won’t believe in us, enemies won’t fear us and the world will be a much more dangerous place. The White House statement issued late Saturday afternoon expressing “deep concern over Russia’s clear violation of Ukrainian sovereignty” was woefully inadequate.