Itachi asked naruto would he kill sasuke in order to save the leaf... naruto said he would save sasuke without killing him.
sasuke later said he would kill naruto. naruto said they would die together. so NO.. naruto would not kill him..
to become hokage.. but naruto would kill him to stop him from becoming hokage.
see what im saying. sasuke will say
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then they will fight .. to die together.. if one is dead ... the other doesn't want to live.. <_<