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: Congress acting indignant over the  #EpiPen pricing is quite disingenuous since they craft the laws that allow such gouging!!
This tweet contains emotions: 
anger, disgust, sadness