Lots of talk about the urgent need of the treaty, along with assurances that this won’t affect domestic gun policy:
The Arms Trade Treaty should not in any way handicap the legitimate right of self-defense. Acting together, we can strengthen international peace and security and the rule of law by requiring universal establishment of responsible national standards for the arms trade.
[…]
Moreover, we must acknowledge and respect that this negotiation is not an attempt to intrude, either in principle or process, into states’ internal activities, laws, or practices concerning the domestic possession, use, or movement of arms. Rather, this treaty will regulate only the international arms trade. Any attempt to include provisions in the treaty that would interfere with each state’s sovereign control over the domestic use or movement of arms is clearly outside the scope of our mandate.
And interesting question will be, if the treaty draft does indeed come out to not affect civilian arms, and Obama gives the treaty his endorsement, how does that affect this as an election issue? The other issue is that once the treaty is established, the anti-gun NGOs will be pushing to expand the scope of the treaty.