When the only tool you own is a gun, every problem is a target.

[aikoaiko]

13. Do you believe Whitehouse.gov?

The President’s plan includes:
1. Closing background check loopholes to keep guns out
of dangerous hands;
2. Banning military-style assault weapons and high-capacity
magazines, and taking other common-sense steps to reduce
gun violence;
3. Making schools safer; and
4. Increasing access to mental health services.

January 16, 2013
https://www.whitehouse.gov/sites/default/files/docs/wh_now_is_the_time_full.pdf

And then voila:

H.R.437 — 113th Congress (2013-2014)
Introduced in House (01/29/2013)

Assault Weapons Ban of 2013 - Amends the federal criminal code to ban the import, sale, manufacture, transfer, or possession of a semiautomatic assault weapon, including:

a semiautomatic rifle that can accept a detachable magazine and has any one of the following characteristics: (1) a pistol grip; (2) a forward grip; (3) a folding, telescoping, or detachable stock; (4) a grenade or rocket launcher; (5) a barrel shroud; or (6) a threaded barrel;
a semiautomatic rife or pistol with a fixed magazine that can accept more than 10 rounds;
a semiautomatic pistol that can accept a detachable magazine and has any one of the following characteristics: (1) a threaded barrel, (2) a second pistol grip, (3) a barrel shroud; (4) the capacity to accept a detachable magazine at some location outside of the pistol grip, or (5) a semiautomatic version of an automatic firearm;
a semiautomatic shotgun that has any one of the following characteristics: (1) a folding, telescoping, or detachable stock; (2) a pistol grip; (3) a fixed magazine that can accept more than five rounds; (4) the ability to accept a detachable magazine; (5) a forward grip; or (6) a grenade or rocket launcher;
a shotgun with a revolving cylinder;
firearms that are specifically listed as prohibited by this Act and copies, duplicates, variants, or altered facsimiles with the capability of any such weapon;
all belt-fed semiautomatic firearms;
any combination of parts from which any such prohibited firearm can be assembled; and
the frame or receiver of a prohibited rifle or shotgun.

I know that Obama has not signed any gun restrictionist legislation, but that is because all such legislation was defeated in congress. He really can't take credit for that.