Walmart pulled there ads too
This is apparently misinformation.
From http://www.defendglenn.com/advertisers.php
Color of Change is claiming that WalMart, CVS, BestBuy, and Allergan have “pulled” their ads. It appears that only Allergan has actually confirmed this. BestBuy has not, and strangely, WalMart and CVS were not even sponsors of Glenn’s to begin with!
I hope the Walmart and CVS info is correct.