The July 4 holiday may be history, but that doesn't mean the fireworks are over. At least not on Capitol Hill. As Congress works until its August recess, it faces several tough issues, including how to pass a National Defense Authorization Act President Obama has promised to veto. Loren Duggan is the director of legislative analysis at Bloomberg Government. He joined Tom Temin on the Federal Drive with a preview of what else awaits this renewed Congressional session.