Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture 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