My US passport expires 16 days from now. I would like to enter the USA from Germany (which is where I spent the holidays). Will I be able to travel despite the near expiry of my passport?
Entering the US is no problem at all, at least as far as the passport goes (I have not been following Covid-19 related rules). A passport expiring soon can create problems for visitors (non-citizens/aliens). An expired passport can create issues for citizens (not necessarily unsurmountable, depending on the specifics) but not one that's still valid, even for one day, when you reach the border.
In practice, it's always good to have at least a few days of validity left (what if the plane is delayed or rerouted?) but there is no specific validity requirement for citizens.