Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: @nytimes media celebrated Don King endorsing #Obama in 08 and 12 now criticize him for endorsing #Trump who wants new Civil Rights era- sad
This tweet contains emotions: 
disgust, sadness