[Repeal The 17th]

Has the supreme court ever overturned itself?

[chajin]

Has the supreme court ever overturned itself?

Plessy v. Ferguson being overturned by Brown v. Board of Education comes to mind.

[Dr. Sivana]

Has the supreme court ever overturned itself?

Yup. In fact, Sandra Day O'Connor reversed herself.

Lawrence v. Texas overturned Bowers v. Hardwick, which recognized that anti-sodomy laws are Constitutional. The behavior had to be legitimized before it could be sanctified.

[Pollster1]

The Supremes have overturned their own rulings several times. Dred Scot was overturned by a change in the Constitution, but Plessy was overturned by Brown as probably the most significant Supreme reversal of its own decision.

There was also:
Lochner v. New York (1905) and Adkins v. Children's Hospital (1923) overturned by West Coast Hotel v. Parrish (1937);
Bowers v. Hardwick (1986) overturned by Lawrence v. Texas (2003);
Pace v. Alabama (1883) overturned by Loving v. Virginia (1967);
Austin v. Michigan State Chamber of Commerce (1990) was very recently overturned by Citizens United v. Federal Election Commission (2010).

[publius911]

Has the supreme court ever overturned itself?

Yes. Several times.

But NEVER the same court.

[Delta Dawn]

yes