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: I despair at the mouth foaming hostility &amp; dishonesty of those in the Leave camp, &amp; we should expose that.
This tweet contains emotions: 
anger, disgust, sadness