I'm not sure what a future government can do.
Early on, some crucial things come to mind (Federal mask mandate, directing Federal funds to rapid testing and PPE), but, now, the wildfire rages everywhere. Making vaccines free, including for illegal immigrants (it's incredibly stupid and self-defeating to deny it to them, as some places have purportedly done), and directing a lot of resources toward distribution and education are the only obvious things to me.
Like in an RPG, some countries put points into skill trees that lets them handle this kind of problem very well. If the U.S. has a weakness, culturally, legally, economically, and geographically, a pandemic is it; it's just not the kind of thing it ever specced to handle.