For the first time in 60 years, Democrats will have a trifecta in Arizona, opening the door for reform of the state’s groundwater laws and climate policies.By Wyatt MyskowPHOENIX—Two years after President Donald Trump won Arizona with 52 percent of the vote, Democrats are poised to win a trifecta in the state House, Senate and governor’s office, and could potentially win every statewide elected position. The battleground state’s blue wave could fundamentally alter how it responds to increasingly deadly heat and persistent drought brought on by climate change.