Medical marijuana advocates say they are exploring legal action challenging the Legislature’s move to replace Proposition 2 “at the behest” of The Church of Jesus Christ of Latter-day Saints.Although Utah voters this month approved the medical cannabis initiative by about 52 percent-48 percent, lawmakers are expected to meet in a December special session to overwrite the measure with a marijuana proposal acceptable to Prop 2 opponents, including the church. In a Thursday letter, an attorney representing a faction of the medical cannabis community argued that the church’s fingerprints are all over the push.