Commentary The issue with Ketanji Brown Jackson, the 51-year-old federal appellate judge who is our senile president’s Supreme Court nominee, is not necessarily her on-paper qualifications. By most traditional metrics, she is “qualified”: She has served as both a district court and appellate court judge, served as vice chair of the U.S. Sentencing Commission, formerly clerked for Justice Stephen Breyer (the man she has been nominated to replace) and is a double-Harvard alum. In terms of “objective” criteria, this is an impressive resume. Instead, the issue with Judge Jackson is that she is a left-wing ideologue who, if successfully confirmed by the Senate, will devote the next few decades endeavoring to move the Supreme Court far to the left. All relevant indications are that she will approach her job not like her (slightly) more pragmatic former boss, but like a leftist activist—in the mode of her possible future colleague, the …