What Was The Worst Congress?

In the 34th Congress, a House member walked onto the Senate floor and beat the tar out of Senator Sumner of Massachusetts with his cane.  Was that the worst Congress or was the 112th?  Gail Collins makes it all clear.

http://www.nytimes.com/2013/01/03/opinion/collins-looking-forward.html?nl=todaysheadlines&emc=edit_th_20130103