On the eve of ObamaCare’s first birthday, one of its most high-profile supporters has had a wake-up call and now worries that the pressure small businesses will face from the $2.6 trillion health care law is “too great.” Starbucks CEO Howard Schultz was once part of a group of business leaders invited to a coffee klatch at the White House. “I was very supportive of the president’s plan” last year, Mr. Schultz said in a recent interview with The Seattle Times. Now, however, the Starbucks chief believes that “under the current guidelines, the pressure on small businesses, because of the mandate, is too great.”