Task: Analyze the tweet's emotional connotations and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best portray the tweeter's mental state.
Tweet: @keprdad  BTW, George W Bush left office in ,09. We have had terrific leadership under Barack Obama. Keep America Great.
This tweet contains emotions: 
anger, disgust, joy