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: @thehill George H. Establishment is unhappy Trump's campaign branded his son low-energy, but he could not have beaten the others either.
This tweet contains emotions: 
disgust