2. ATF can obtain information from gun shops in border states to report customers who purchase two or more domestically made assault weapons within five business days.
3. Toughen licensing requirements on gun dealers to secure their inventories.
All of these bureaucratic measures do not need new laws, Congress, or the approval of the people.
Obama has proven consistently in an election year that he can find executive means to sidestep Congress. He can easily avoid the Constitution and the Bill of Rights by executive fiat.