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: @88Palouseriver @ABC @NRA I rejoice everything time some moron is taken out of the genetics pool.
This tweet contains emotions: 
anger, joy, optimism