President Obama will nominate Judge Sonia Sotomayor of the United States Court of Appeals for the Second Circuit as his first appointment to the court, officials said Tuesday, and has scheduled an announcement for 10:15 a.m. at the White House.
Ms. Sotomayor, 54, will be the first Hispanic to serve on the Supreme Court if her nomination is approved by the Senate.
The president reached his decision over the long Memorial Day weekend, aides said, but it was not disclosed until Tuesday morning when he informed his advisers of his choice less than three hours before the announcement was scheduled to take place.
The president narrowed his list to four, according to people close to the selection process, including Federal Appeals Judge Diane P. Wood of Chicago, Homeland Security Secretary Janet Napolitano and Solicitor General Elena Kagan.
In what may be her best-known ruling, Judge Sotomayor issued an injunction against major league baseball owners in April 1995, effectively ending a baseball strike of nearly eight months, the longest work stoppage in professional sports history, which had led to the cancellation of the World Series for the first time in 90 years.