Supreme Court of the US

Gotta keep those stairs clean.

This is the place where a number of major accomplishments will be dialed back, should Trump's new nominee get through the vetting process (pretty much a fait accompli -- unless a bunch of senators come down with covid and are not able to show up...).  

Among those issues are: marriage equality (if that goes, the status of same gender couple reverts back to individual states to decide -- meaning it'll be legal in some states and not legal in others), the Affordable Health Care Act (if that goes, some 28 million Americans will immediately lose health coverage), and of course, abortion.  Did you ever want to time travel? If so, come to the US and fly back a century....