Even if he gets independent votes, he needs to consolidate and energize his base especially at a time when the Democrats are so energized and their base is going to be so consolidated.

NPR: Conservatives a Test for McCain After Romney's Exit

Yet the recent improvement is from a very low base, especially at the grandest stores.

ECONOMIST: America's shoppers

The emissions, from what are known as "burn pits, " have been a concern for troops, especially those who served at Balad Air Force Base in Iraq.

CNN: Congressmen want more info on 'burn pit' claims