Task: Determine the prevailing emotional tone of the tweet, categorizing 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 most accurately represent the tweeter's mental state.
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