And it poses a political dilemma for President Joe Biden, who could see the problem complicate his political calculations in a trio of swing states - Arizona, Nevada and Colorado - along with California, home to many of his most deep-pocketed donors…The tensions were apparent this week as negotiators here exchanged heated words from the podium in front of the hundreds of technocrats, tribes, and farmers who manage the river’s water and were gathered at a Las Vegas casino for their annual conference. The brawl unfolding among the states that rely on the West’s most important waterway will shape the economies for cities from Denver to Los Angeles as well as some of the nation’s most productive agricultural areas. Western states are on a collision course as they scramble to cut a deal to dramatically shrink their use of the drought-stricken Colorado River ahead of a March deadline from the Biden administration. Click the link to read the article on the Politico Website ( Annie Snider and Camille von Kaenel).