These few are just my own records from memory:
The highest and longest sustained period of unemployment since WW2.
A deficit multiplied many times.
Combat troops that died in war action AFTER he told the world before cameras that the last combat troops had left Iraq in August of 2010.
Non-closure of the prison at Guantanamo Bay after campaign promises in 2008 for closing it.
Cutting and running from Iraq, leaving an insecure and unstable government in place after promising otherwise under foreign relations. The recent terrorist attacks have proven failure in this regard.
Every piece of new legislation would be posted to the White House website for three days for all the world to see BEFORE he signs it into legislation.
More here: Three pages more online: http://www.politifact.com/truth-o-meter/promises/obameter/rulings/promise-broken/
