WASHINGTON (MarketWatch) - President Barack Obama is not ready to endorse Hillary Clinton "at this point" even though the Associated Press has concluded from a survey of superdelegates that she has enough to support to clinch the nomination, White House spokesman Josh Earnest said Tuesday. "There is at least one superdelegate, the one who works in the Oval Office, who is not prepared to make a public declaration of his endorsement at this point, but stay tuned and we'll keep you updated," Earnest said at the daily briefing. Obama does not expect to "see, or meet, or appear" with Clinton during a trip to New York on Wednesday, where he will hold two fundraisers and tape an appearance on the Tonight Show.