By John — Desalination News
Water scarcity — and the competing desalination plans both parties are pitching to address it — has become the top issue in Arizona’s November 3 midterm elections, according to Reuters reporting, surpassing immigration and affordability for the first time in the state’s political history.
The shift reflects a worsening reality for a state with no coastline of its own yet deeply dependent on an overdrawn Colorado River. Arizona absorbed a 27 percent federal cut to its Colorado River water allocation in August 2026, and further reductions could nearly double after 2028 if drought conditions on the river continue to deteriorate. A survey by the Center for the Future of Arizona found that 71 percent of Arizonans now doubt the state’s water systems can support continued growth — the first time water scarcity has ranked as voters’ single biggest concern, ahead of both immigration and the cost of living.
That anxiety is now showing up directly in campaign platforms. Republican gubernatorial candidate Andy Biggs has proposed a $19 billion water-infrastructure plan that includes building a desalination plant near Yuma, aimed at treating water for use within Arizona itself. On the Democratic side, U.S. House candidate Amish Shah has instead backed desalination plants sited in Mexico and California, an approach that would rely on water-exchange agreements and new pipeline or canal infrastructure to move desalinated supply toward Arizona rather than building treatment capacity inside the state’s own borders. Incumbent Governor Katie Hobbs, a Democrat seeking re-election, has leaned on her record pressing the federal government for what she describes as Arizona’s fair share of Colorado River supply amid the basin-wide cuts.
The split underscores how complicated desalination is as a policy solution for a landlocked state. Unlike coastal users in California or the Gulf Cooperation Council states, Arizona cannot simply build a seawater intake and treatment plant near where the water is needed; any desalinated water bound for Arizona has to come from a plant built on someone else’s coastline — Mexico’s Sea of Cortez or Southern California — under a cross-border or interstate exchange arrangement, then be moved inland through existing canal and aqueduct systems. That makes timelines, costs and diplomatic coordination far more significant variables than for a typical coastal desalination project, even before construction begins.
Whichever candidates prevail on November 3, the election marks a notable moment for the desalination industry: a technology historically discussed in engineering and infrastructure-finance circles has become a defining plank of mainstream U.S. electoral politics, in a state whose growth and agricultural economy depend on finding new water supply as the Colorado River shrinks. How the winning candidates follow through — and whether Mexico and California are willing partners in an export arrangement — will shape whether desalinated water ever actually reaches Arizona taps.
(Source: Reuters)