"These new tax laws affecting affiliates are supported by the large national retailing chains that covet the affiliate advertising programs of their competitors, " Paul Misener, Amazon's vice president of public policy, said in a statement.

WSJ: Large Retailers Push Amazon on Taxes

"Amazon.com has long supported a simplified nationwide approach that is evenhandedly applied and applicable to all but the smallest volume sellers, " Paul Misener, Amazon's vice president of global public policy said in a recent letter to senators.

NPR: Senate Bill Jeopardizes Tax-Free Online Shopping