posted by O-TrapAs for a meltdown, not yet. If she passes near (or after) the election, look for Democrats to try to do the same thing Republicans did that ultimately resulted in Gorsuch's appointment.
They'll make the Repubs look really hypocritical (which that accusation is like a gnat to politicians), but the Dems can't stop it without controlling the Senate.
What it would do is give the Dems justification for adding seats to the SCOTUS. But they're probably prepared to keep RBG on life support for 5 more years, if need be.