Ukrainian troops running low on supplies amid military aid holdup

Read MoreWith potential U.S. military aid to Ukraine stalled in Congress, Ukrainian troops are running short on supplies and are struggling to hold the line. Charlie D’Agata is on the ground in eastern Ukraine.With potential U.S. military aid to Ukraine stalled in Congress, Ukrainian troops are running short on supplies and are struggling to hold the line. Charlie D’Agata is on the ground in eastern Ukraine.