How effectively has the U.S. government implemented(applied) choice architecture to combat the SARS-COV-2 pandemic?

How effectively has the U.S. government implemented(applied) choice architecture to combat the SARS-COV-2 pandemic? An answer with 2.5 page opening statement with reasoning and evidence with list of sources. One of the sources must be taken from the book called The nudge by Richard h. Taler and from this book ,you must use 3 quotes that are cited and support the thesis