In many ways my trip last month to Flint, Mich. — now the symbolic epicenter of how bad decisions, bad politics and ill-advised money-saving measures can seriously and permanently harm children — was more depressing than the first time I visited that struggling city in 2016.

You’ll recall that in 2014, the state of Michigan, led by Gov. Rick Snyder (R), replaced Flint’s clean, safe water from Detroit’s system with improperly treated water from the Flint River. Lead leached from pipes into the water supply. The state’s irresponsible — in fact, criminally negligent — decision precipitated one of the worst public health crises in recent U.S. history.

The highest lead level recorded in Flint was 13,000 parts per billion (ppb) in 2015. This was more than 866 times the federal guideline of 15 ppb - the upper allowable level, above which immediate remediation is required.