What is this? Elaborate please.
No he did not have the Rinnegan I understand this. When it was revealed in the manga that Madara has the Rinnegan I immediately said NO **** that not possible. Only because Nagato
was an Uzumaki and related to Senju and had enormous chakra which doesn't make any sense at all since the two sons apparently inherited their respectively different traits from the Sage. Senju ancestor got the chakra, Uchiha ancestor got the eyes so it should be the Uchiha who have the ability to awaken the Rinnegan not the Senju descendants right? WTF how does Nagato have this ability. I suppose it fits Madara but the new question is...
Do you have to have Senju DNA to obtain the Rinnegan as Madara has which means Sasuke would need to do this somehow (Suigetsu scroll possibly) in order to obtain Rinnegan. Kishi did you screw up with Nagato having the Rinnegan. Although he is a badass character and I liked seeing him with it more than Madara.