Obama should be angry about how his administration has performed in the past couple years. Congress has been locked in argument for a record amount of time. Likewise, Obama's administration has been rocked by a handful of scandals and other issues. There's not reason Obama should be happy with himeslf.
President Barack Obama isn't as angry as he used to be. It's his second term, he can't be re-elected again, and his demeanor seems much calmer than in his first presidency. Obama's calm and cool demeanor is a sign he's more relaxed as Congress bickers among itself as to how to get things done. Key and Peele's "Obama Anger Translator" is hilarious, although the president rarely shows those emotions in public.