My favorite is Rand Paul's annual airing of grievances. Here are some good ones:
to my absentee friend @marcorubio, I didn't put your $170k+ salary in my waste report today. But I could have #Festivus— Dr. Rand Paul (@RandPaul) December 23, 2015
I have no grievances against my fellow doc @RealBenCarson because I have not heard a word he has said in any debate. #Festivus— Dr. Rand Paul (@RandPaul) December 23, 2015
Where to start but @realDonaldTrump. If u bring the Yiddish, know what it means. Guess that's more of a kvetch than a grievance #Festivus— Dr. Rand Paul (@RandPaul) December 23, 2015