I don't think it is legal - but the PC crowd readily accepts smoking pot while they reject smoking tobacco. Neither one is particularly good for you.
But pot rots your mind so the liberals love it. Pot smokers inevitably vote socialist becuase their mental capacity is diminished.
I'd still rather pass a smoker on the highway then a pot user. That's for sure. At least regular cigarettes don't make one feel all crazy in the head. I can still function with a clear head. :)