They're especially prevalent in the West, where half a dozen states have legalized medical marijuana.
Both states previously legalized the use of medical marijuana.
Only two states have legalized gambling since the beginning of 1994.
Some states have legalized acts that are prohibited by federal law.
It was first such action in the 10 years since the state legalized casino gambling.
But there is an added incentive this year: a fear in each capital that the other state will legalize gambling first.
Once the state legalized it, bookies were required to pay a ten percent tax.
Since then, more than 15 states have legalized and regulated medical marijuana.
Eight states have legalized its medical use, so a new federalism battle may be looming.
In fact, four states have legalized a concept known as a statutory will, which comes as a standard form.