The Colorado River region is split into a Lower and an Upper basin, which submitted separate plans for the river’s future and could not reach agreement.
Sam Brown appears to be edging closer to Sen. Jacky Rosen in a contest the incumbent first-term Democrat enjoyed a lead of 5 percentage points in 2018.
Unofficial results may be called on election night, but the varied audit procedures mean counts will take days, or even weeks, to be certified as official.