Quality snark from Power Line, which links to this Stuart Taylor piece explaining why, in fact, the 4 dissenting Justices were not on the same page as Sotomayor:
[E]ven Justice Ruth Bader Ginsburg's 39-page dissent for the four more liberal justices quietly but unmistakably rejected the Sotomayor-endorsed position that disparate racial results alone justified New Haven's decision to dump the promotional exam without even inquiring into whether it was fair and job-related.
Justice Ginsburg also suggested clearly -- as did the Obama Justice Department, in a friend-of-the-court brief -- that the Sotomayor panel erred in upholding summary judgment for the city. Ginsburg said that the lower courts should have ordered a jury trial to weigh the evidence that the city's claimed motive -- fear of losing a disparate impact suit by low-scoring black firefighters if it proceeded with the promotions -- was a pretext. The jury's job would have been to consider evidence that the city's main motive had been to placate black political leaders who were part of Mayor John DeStefano's political base....
[W]hile Ginsburg at least required the city to produce some evidence that the test was invalid, the Sotomayor panel required no such evidence at all. Its logic would thus provide irresistible incentives for employers to abandon any and all tests on which disproportionate numbers of protected minorities have low scores.