Why Are We Having Debate Watch Parties When There Is A Clear Nominee?

Donald Trump is sharp. Last night at Town Hall, Trump said that except for Day One he will be the dictator so the Fake News media is using as their talking point, ending before Trump continuing to say that he will close the border and drill.
Trump has had 4 years to figure this out. Kash Patel announces that the administration will go after the media for spreading the propaganda.
Why are we having debate watch parties when there is a clear nominee.