SF Giants owner has a history of supporting anti-LGBT politicians.

A nearly full moon following the San Francisco Giants 3-2 loss to the Chicago White Sox after ten innings at AT&T Park in San Francisco, Calif., on Tuesday, Aug. 12, 2014. (Nhat V. Meyer/Bay Area News Group)

Charles Johnson’s 15 minutes of infamy may not have run their course.

Johnson, the billionaire co-owner of the Giants, was criticized when it came to light last month that he and his wife each donated $2,700 to the campaign of Mississippi Republican…