RBG was released from George Washington Medical Center in D.C. Thursday after spending the night. As you know ... she fractured 3 ribs after taking a nasty fall Wednesday ... just one day after the midterm elections.

RBG is the centerpiece of SCOTUS's liberal wing ... and Trump would like nothing more than to replace her with an ultra-conservative.

She'll be working from home Friday, to maintain an incredible attendance record over her quarter-century on the highest court in the land.

Mind you ... RBG is a cancer survivor, she's had a heart procedure and she's had broken ribs before ... and she's bounced back so quickly she was never out of the game.

Well wishes.