"Ever since her 1981 nomination to the Supreme Court, Justice Sandra Day O'Connor has consistently provided the "swing vote" between a four-justice bloc of liberals and a four-justice bloc of conservatives. Rarely in the minority on any case, her position in 5-4 splits has usually prevailed. Swing Dance looks at her key role in the 2003 controversial University of Michigan affirmative action cases, which spelled out a new approach to how race may...