the lobbies opposing universal healthcare are not necessarily stronger than those opposing action on climate change.
though maybe the lowered oil price (and consequent fracking collapse) has left GOP-friendly coal as the main climate change group, which would mean that *within* the Dems, climate change is easier than healthcare (since pharma and insurance are still strong in both parties).
anyway, as i said before, there is no reason to trust the words from someone with a record like his. it's interesting that he wants to signal something positive on climate action but does not want to make the politically painless choice of pushing for legal weed. which to me suggests he has had some personal input in this - i can't believe a consultant would tell him not to throw in that popular freebie.