I want to know the answer to the following question:
Who was Ali ibn Abi Talib?
All the background I'm provided with is that "Sunnis believe the true political successor of the Prophet in Sunnah is based on ٍShura (consultation) at the Saqifah which selected Abu Bakr, father of the Prophet's favourite wife, 'A'ishah, to lead the Islamic community while the religious succession ceased to exist on account of finality of Prophethood.". Is that enough to answer the question?
Answer: no