At the Spectator, Jennifer Rubin’s analysis of yesterday’s Supreme Court decision has this:

It remains to be seen whether this will impact the 2008 Republican presidential nomination. Rudy Giuliani was the only GOP candidate to respond to request for comment, stating: “I applaud today’s Supreme Court decision striking down the racial preferences used in determining students’ public school placement. I completely agree with Chief Justice Roberts that ‘the way to stop discrimination on the basis of race is to stop discriminating on the basis of race.’”
In the days ahead one can expect that Giuliani will remind voters of his strong stance against racial preferences while mayor of New York. Having run on the slogan of “one standard, one city,” he can boast that as mayor he withstood harsh criticism from liberal civil rights groups and abolished minority set-asides and eliminated many race-based affirmative action programs. Senator John McCain and former Gov. Mitt Romney have made statements in the past opposing racial preferences and quotas. As for “testing the waters” candidate Fred Thompson, one of the former Tennessee senator’s rivals pointed out shortly after the opinion came down that he voted twice in 1995 in favor of affirmative action. (His campaign did not return a request for comment.)