Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's mental state.
Tweet: From what I know of the man, I have to assume that @realDonaldTrump has had a heated argument with his own penis. #sad
This tweet contains emotions: 
sadness