Supreme Court Justice Ruth Bader Ginsburg Undergoes Heart Surgery

Supreme Court Justice Ruth Bader Ginsburg underwent a coronary catheterization procedure Wednesday morning to have a stent placed in her right coronary artery, according to a statement from the high court.

Ginsburg, the statement said, "experienced discomfort during routine exercise" Tuesday evening and was then taken to MedStar Washington Hospital Center, where the surgery was performed. Ginsburg is said to be resting and "is expected to be discharged in the next 48 hours.

The 81-year-old Ginsburg, who was appointed by President Bill Clinton, is the oldest justice on the bench and has shown no signs that she's ready to retire.