Probably just use a website like https://www.govtrack.us/congress/votes
To be president, you have to at least be 35 years old.<span />
The factor that usually does not matter much is changing the legal smoking age. There are many smokers that are underage and most of them start in their early teens, so it's usually not important whether or not you make it legal or illegal, they will still find a way to smoke.
The best known shang art form is bronze casting.