By Bernie Becker - 11/30/12 06:56 PM EST
The Senate has finished voting on amendments to the defense bill for this week, but will pick the measure back up next week.
But while the legislation has bipartisan support in Congress, and the backing of the powerful Internet retailer Amazon, some prominent conservative lawmakers and groups, as well as other online retailers, oppose the bill.
Conservatives like Sen. Jim DeMint (R-S.C.) say that policymaker should be finding ways to reduce shoppers’ tax burdens, and coalitions opposing the measure say that it would place a huge burden on smaller outfits.
Backers of the measure would like to see it enacted before the end of the year, to avoid having to reintroduce it with a new Congress.