Pennsylvania is poised to legalize marijuana as soon as next year if Democrats can win a handful of key state legislative races in the November elections, a top lawmaker says. House Speaker Joanna McClinton (D) said at a Black Cannabis Week event on Friday that the state still has “a ways to go” to catch up with its neighbors that have already “moved in the right direction” by enacting marijuana legalization. While McClinton’s chamber passed a b…