That's not a constitutional argument for Amazon's position. You're obligated to pay sales tax on items purchased out of state, by annual remittance. Almost nob

That's not a constitutional argument for Amazon's position. You're obligated to pay sales tax on items purchased out of state, by annual remittance. Almost nobody does it, but if you're ever audited (by your state), they can ding you if you don't. Amazon is plenty big enough to be specifically called out by cash-strapped state governments for, effectively, encouraging people to evade the law.