Address Gun Violence in Cities: Obama and Biden would repeal the Tiahrt Amendment, which restricts the ability of local law enforcement to access important gun trace information, and give police officers across the nation the tools they need to solve gun crimes and fight the illegal arms trade. Obama and Biden also favor commonsense measures that respect the Second Amendment rights of gun owners, while keeping guns away from children and from criminals. They support closing the gun show loophole and making guns in this country childproof. They also support making the expired federal Assault Weapons Ban permanent.Lets break this apart point by point:
"would repeal the Tiahrt Amendment"
I have not delved into the intricacies of this issue, and a quick check seems to bring up contradictory views from both the NRA, and from Mayors Against Illegal Guns, so I won't comment on this further, except to say that any responsible gun owner should not be against preventing illegal access to firearms.
"favor commonsense measures"
Until we see more, it is impossible to say what "commonsense measures" are, except for the specific proposals in this policy. Possible laws might be microstamping requirements, ammunition serializing, and increased regulation of ammunition sales.
"support closing the gun show loophole"
I took me a long time for understand what this issue was, because in California the so-called gun show loophole has already been closed. What this means is that Obama wants are gun transfers to require a background check of the recipient, even for private party transfers.
"and making guns in this country childproof"
I can foresee two possible results from this. Short term this might inspire a national safe storage law to prevent child access. Long term this might cause a requirement that only owner-authorized handguns be sold.
There are two problems with these measures. First, the Heller decision makes draconian storage laws unconstitutional, and just recently Heller was cited by the defense in a case involving handgun storage which resulted in charges being dismissed. I read about it at Chaos in Motion. Second, owner-authorized handgun technology is not even close to being ready for production, and may never actually be used in products for liability reasons, as explained Owner Authorized Handguns: A Workshop Summary.
"support making the expired federal Assault Weapons Ban permanent"
Good luck with that, because it requires legislation from Congress, and at the moment Congress does not want to touch gun control issues. Additionally, 65 Democrats are on record opposing a renewed assault weapon ban. And finally, an assault weapon ban would be federal law, meaning that it would have to pass constitution muster, thanks to the Heller decision. It is possible that an assault weapon ban would be found unconstitutional because the 2nd Amendment has been found to protect the right to own firearms that "are in common use at the time", and there is a pretty good case to be made that nationally, AK-47 and AR-15 rifles are in common use.
So, even though there is a lot of fear about increased gun legislation, Obama's policy goals do not seem to have a realistic chance of becomming law. Between political factors and legal reality, the traditional tools of gun control seem limited. They, the anti-gun advocates, are going to have to think of something else to attain their goals.