'I'll go toe-to-toe with rogue states': Obama

Democrat presidential hopeful Barack Obama cast himself as the leader the US needed to stand up to and engage renegade nations such as North Korea.

’We need a president who’ll have the strength and courage to go toe-to-toe with the leaders of rogue nations, because that’s what it takes to protect our security,“ the Illinois senator told Democrats at a rally in Des Moines, Iowa.