Scores of communities around the United States have aging and decrepit wastewater systems that can put residents’ health and homes at risk. The Bipartisan Infrastructure Law and former President Joe Biden’s administration promised hundreds of millions of dollars to address the problem, but much of that has been undone in President Donald Trump’s return to office. Some of the Trump administration’s cuts have come as he has targeted diversity, equity and inclusion. Advocates say that will likely widen inequality, as many of the worst wastewater systems are in poor communities. Here are key takeaways from The Associated Press’ reporting on the issue.