U.S. leadership gets highest approval ratings, Russia lowest

Gallup shared results last week from its World Poll surveys in Russia and 11 neighboring states on people's perceptions of Western and Russian news coverage of the situation in Ukraine and Crimea.

Gallup reviews its top world findings from 2015 based on surveys conducted in more than 140 countries through the Gallup World Poll.

Russian President Vladimir Putin is not popular globally, but he is respected back home. President Barack Obama is popular abroad, but slightly less so at home. Should leaders worry about how they're perceived globally?