That right there is something I would like to see included with all Congressional legislation
A sunset provision
If it's working, there will be no problem renewing it periodically
If it's a failure, such as Obamacare, it will just go away
If it's a mixed bag, they'll tweak it every few years til it either works or goes away
No more passing a bill and figuring out how to perpetually fund it
Same with Executive Orders. They should be valid for 90 days or so. If Congress accepts the order they will pass a bill which is also subject to a sunset