SAN DIEGO — Phil Mickelson turned to his biggest blunder on the golf course to apologize for his latest mistake with his mouth Wednesday as he prepares for the Farmers Insurance Open at Torrey Pines.

Mickelson caused a sensation this week by saying new federal and state tax rates kept him from being part of the San Diego Padres’ new ownership group and might cause him to move away from his native California as part of ‘‘drastic changes’’ brought on by the political climate.