Former President Donald Trump’s campaign is fighting to prop up its numbers in the Church of Jesus Christ of Latter-Day Saints — but it’s been one blunder after another, wrote McKay Coppins for The Atlantic. Mormons, who have relatively large populations of voters in the key Western battleground states of Arizona and Nevada, have typically been a reliably Republican voting bloc, and they are still expected to back the GOP overall in this election, but Republicans have been bleeding support from them for years, as the LDS church has broken with them on key issues like immigration, and as former…