But without annexing TJ, you can’t force that money to be spent correctly or for anti-pollution laws to be enforced. Mexico has more than enough money to solve this issue, the problem is that they don’t want to.
(Yes, and the US is delinquent on clearing landmines in Cambodia which the US supplied half a century ago; Bourdain had some very strong words on the matter. The US has more than enough money to solve this issue, the problem is that they don’t want to. Tu quoque. Also, the northeastern US sends air pollution into Canada, and there's a transborder program on that, with Canada.)
Anyway, the US has fairly successfully managed to conduct foreign assistance on water purification and sanitation for decades (historically, through USAID's Global Water Strategy and other programs, for developing countries, and specific ad-hoc legislation for Mexico) without sending in Chuck Norris to oversee it, or militarily annexing the region involved. In the context of NAFTA+USMCA, SD-TJ is a 21st-century mega-region that straddles national borders (pop 5.46m (2020), 72nd largest in the world and 11th largest in North America), as does the Tijuana water basin. Officially it becomes a mega-city when it hits 10m, projected for the 2030s, or only 1/2 presidencies from now.
Given USAID is currently being dissolved and folded back into the State Dept, the onus is now on the current admin to figure out their approach with Mexico/BCN/TJ to a solution and implement it. Transborder cooperation is possible. Yes there are some obvious structural challenges in dealing with Mexico and implementing assistance.
SoCal water policy is already under a major spotlight in the context of the 2025 LA fires and private agribusiness ownership of water rights in adjacent watersheds; that's a two-century-old story.
