Obama Faces Tough Sell on Potential Ukraine Intervention

Image: Anti-government protesters in Lviv, Ukraine
A barricade made from old tires and two cannons, captured in a local military unit, built by Ukrainian opposition supporters in Lviv, Ukraine, on Wednesday.IVAN BOBERSKYY / EPA

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For the first time since the 2001 invasion of Afghanistan, Americans are now as likely to say U.S. military involvement there was a mistake as to say it was not, according to a new Gallup poll.