Deputy assistant U.S. attorney general Leondra Kruger, stands during her confirmation hearing to the California Supreme Court in San Francisco on Dec. 22, 2014. President Joe Biden has already narrowed the field for his first U.S. Supreme Court pick. One potential nominee is Kruger, 45, a justice on the California Supreme Court. A graduate of Harvard and Yale’s law school she served as a law clerk on the high court before arguing a dozen cases before the court as a lawyer for the federal government. But Kruger, whose mother is Jamaican, has also been described as a moderate, which could be a tough sell for some liberal Democratic senators. (S. Todd Rogers/Pool via AP, File)