Found this online and thought it had merit. A German's response to why the US is struggling so hard with getting the states to all follow a common protocol for Covid-19:
"German here. We're a federation, too, and many of the measures taken fall within state competences as well. We only have a quarter of the US' population, and roughly a third of the number of states (16), which is enough to see some states with many more infections than others.
Initially, measures like that groups of more than one single household were prohibited from assembling in public, or school closures, were introduced by states individually, and sort of rolled over the country as states were looking at what other states were doing. They got together with the federal government quickly, though, and coordinated their response in periodic conferences. The consensus decisions were then formally enacted by the individual states. I assume states in other federations acted in a similar way, i.e., coordinated under federal guidance.
This can't work in the US right now, because states would only ever fall in line as a whole if the federal guidance was to jump off a cliff, but also because y'all somehow managed to pull off the astonishing feat to politicize a virus. It's not the only issue where your toxic partisan political climate prevents common sense solutions, but it's even more obviously ridiculous than the others, and should really make you think whether there's something that could be done to reform the political system in the US. Because we, and every other country out there, have our share of idiots, too. It's how your system works that leads to those bizarre effects, not that some people are morons."