I googled this and saw that the bill passed the US Senate in May 2013 but was not expected to pass in the House. I didn't see any more about it, so it probably didn't pass. It seems that stores were complaining because they couldn't compete with the internet because they were required to pay tax. For example, Best Buy said that people would come in to see an item, then once they decided it was what they wanted they would go on their smartphone, right there in the store, and order it from Amazon, or somewhere they did not have to pay tax.
I don't mind paying tax on things I order. I would pay tax in a store, anyway. Shipping is a convenience so you don't have to go out to a store to get the item, and some things are not available in the stores. When I was shopping in Sears for my recliners, I saw the ones I wanted, but wanted to think it over to be sure. Once I decided they were what I wanted I went online to see if I could order them instead of going back to the store. They were each $15 less online. They were having a free shipping special so I also saved there. If I ordered them from the store I would have had to pay delivery charges.
Normally, I do not order something online unless it's something I can't get in the local store.