Chances for near-term marijuana legalization just improved by quite a lot.Canopy Growth (CGC 8.84%) stock surged 9.4% through noon ET Monday morning -- and it's not hard to figure out why.Over the weekend, as you may have heard, President Joe Biden announced he will not run for reelection this year, and Vice President Kamala Harris is currently the most likely candidate to take his place. Investors who recall the VP's pro-marijuana legalization comments from the last election are betting this bodes well for ...