Ketanji Brown Jackson, Biden's Supreme Court pick, reveals a lot with questions she won't answer

Senate Judiciary Committee Democrats incessantly remind us that the historic milestone marked by Judge Ketanji Brown Jackson’s nomination is that she would become the Supreme Court’s first Black woman.

Yet, how historically significant can it be if she can’t say what a woman is?

For all her appeal – and in 12 grueling hours of testimony on Tuesday, Judge Jackson’s intellect and charm were on full display – the nominee is dodgy. Though a highly accomplished – indeed, a historic – woman, she testified that she can’t "provide a definition" of what a woman is.

Sen. Marsha Blackburn, R-Tenn., even tried...