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