Let us today hoist a glass — preferably of cool, clean Colorado River water — to Keith Brackpool, a walking illustration of how the generous bestowal of campaign donations and other largess can keep a man cozy with California politicians, even in the face of evidence that what he's selling may not be worth buying. Brackpool is the chairman and chief executive of Cadiz Inc. For years, Cadiz tried to entice the Metropolitan Water District into a $150-million scheme to store surplus water from the Colorado in the Mojave Desert. The skeptical MWD, which serves most of Southern California, finally...