Obama to address AFL-CIO convention next month in Los Angeles

The AFL-CIO is a key part of the Democratic base, but Obama has a fragile relationship with the group.

http://www.washingtonpost.com/politics/obama-to-address-afl-cio-convention-next-month-in-los-angeles/2013/08/29/c816f392-10be-11e3-a2b3-5e107edf9897_story.html