Colorado River Basin Candidates Wade Into Water Politics, but Winners Are Unlikely to Make Big Changes

The accusations turn a complicated water dispute into a campaign issue. Arizona’s Andy Biggs blames Katie Hobbs for losing millions of gallons of Colorado River water. In Nevada, Aaron Ford’s campaign says Joe Lombardo mishandled negotiations over future river rules.

The conflict centers on negotiations among the seven basin states. They have failed to agree on how to share the river during a historic drought and after years of overuse. The federal government therefore imposed a 10-year framework requiring water cuts from California, Arizona and Nevada.

The claims arrive just before elections in which six basin states choose governors. Arizona and Nevada are also suing the Department of the Interior over the federal plan. The accusations show how water policy has become a political flashpoint, even though Gary Wockner says basin water politics are usually surprisingly nonpartisan.

Six of the seven Colorado River Basin states are voting for governors in the midterm elections. The races matter because the winners will guide their states through the next phase of Colorado River negotiations, including decisions about water cuts and lawsuits.

Nevada’s race is especially tight. Democrat Aaron Ford and Republican Gov. Joe Lombardo are locked in a close contest. Arizona’s Democratic Gov. Katie Hobbs has more of a cushion over Republican Andy Biggs, although water remains a major issue there.

Most other races are expected to preserve existing partisan control. Democrats are favored in California, Colorado and New Mexico. Republicans lead in Wyoming. Utah is the basin state not included among the six gubernatorial elections described. The election results will not necessarily transform water politics, which Gary Wockner calls surprisingly nonpartisan.

The Colorado River Basin is the area across seven states that depends on, manages or receives water from the Colorado River. The river’s water supports communities and economies across both the Upper and Lower basins. Its scarcity has made allocation one of the West’s biggest political flashpoints.

The basin states are Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming. The article identifies California, Arizona and Nevada as the Lower Colorado River Basin states. Colorado, New Mexico and Wyoming are described as Upper Basin states; Utah is part of the seven-state basin but is not discussed in the gubernatorial races listed.

The basin faces historic drought and a long history of using more water than the river can reliably provide. States are negotiating new rules, while the federal government has imposed a temporary 10-year framework. The dispute could eventually involve all seven states in one major lawsuit.

The federal government imposed the framework because the seven basin states failed to reach agreement on new Colorado River rules. The river has faced years of overuse and a historic, punishing drought. Those pressures made existing arrangements increasingly difficult to maintain.

The main disagreement concerns both the size of the cuts and their distribution. The Lower Basin has historically used more water than its entitlement, although it no longer does. It proposed taking smaller cuts under some drought conditions, with larger reductions shared equally between the basins after a threshold. The Upper Basin resisted mandatory cuts.

The federal plan lasts 10 years and requires reductions from California, Arizona and Nevada. Nevada and Arizona are challenging it in court. Negotiations continue, but Elizabeth Koebele called the prospects for consensus especially pessimistic, leaving a broader lawsuit involving all seven states possible.

The federal framework assigns its reductions exclusively to the three Lower Basin states: California, Arizona and Nevada. The Upper Basin states do not face mandatory cuts under this plan. That divide is central to the dispute because the basins disagree over responsibility for protecting the river’s shrinking supplies.

The consequences could be severe for communities that lose access. The article gives Phoenix as the clearest example: under some federal-plan scenarios, the city could lose all of its Colorado River supply. Arizona polling found that 69 percent of voters lack confidence that the state will have enough water over the long term.

The cuts are therefore more than an allocation dispute. They could affect the reliability of major cities and communities. Arizona and Nevada are suing, while negotiations continue. A broader lawsuit involving all seven basin states remains possible if the regions cannot agree.

The two regions have different views of fairness and risk. The Lower Basin historically used more water than its entitlement, though it no longer does. It wants smaller reductions under certain drought conditions, followed by cuts shared equally between the Upper and Lower basins once conditions worsen.

The Upper Basin has never used its full allotment and strongly resists mandatory reductions. Its states argue that their headwater communities face greater hydrological uncertainty. In their view, a fixed obligation to cut could be unworkable when future water supplies are difficult to predict.

The disagreement has stalled negotiations over replacement rules. It also reflects a deeper conflict over the compact governing river operations and each basin’s obligations. The federal government has imposed a 10-year framework on the Lower Basin states, but Arizona and Nevada are suing. A seven-state lawsuit remains possible.

An interstate water compact is a formal agreement among states that sets rules for sharing and managing a river. It matters because no single state controls an interstate river. The agreement provides a framework for water rights, basin responsibilities and disputes.

The Colorado River Compact divides the basin into Upper and Lower regions and establishes obligations for each. It is part of the legal structure governing the river’s operations. The article does not provide the compact’s precise numerical allocations, but says the states disagree over key clauses that govern how reductions should work.

That disagreement now blocks consensus. The Lower Basin argues that cuts should eventually be shared under severe drought conditions. The Upper Basin says mandatory reductions are unworkable because headwater flows are uncertain. The compact’s unresolved interpretation could lead to a lawsuit involving all seven basin states, even as federal rules take effect.