If Oklahomans vote to make state-sanctioned medical marijuana legal June 26, Oklahoma will be one of many states increasingly at odds with the federal government over how marijuana should be viewed and regulated.

Under federal law, marijuana use would continue to be illegal.

The federal government classifies marijuana as a Schedule 1 drug, which it defines as a drug "with no currently accepted medical use and a high potential for abuse."

But the vast majority of states have adopted laws that disagree with that position — at least to some extent, according to data gathered by the National Conference of State Legislatures.