“Am I an a------?” says Lozman, leaning his six-foot-four frame across the table at a Miami Beach restaurant near his home. “Yes, I guess I am, to corrupt public officials. Absolutely. To other people, I don’t think so. The Supreme Court didn’t seem to think so.”The Supreme Court will get a second opportunity to offer an opinion next month when it considers another case brought by Lozman: a lawsuit alleging that when Riviera Beach officials had him kicked out of a city commission meeting and arrested 11 years ago, they were using the criminal justice system for payback against a critic who annoyed them. Even if Lozman, 56, loses this time around, just getting his case before the justices is a remarkable achievement: Nobody can remember an individual plaintiff — a regular guy, not an institution — advancing two unrelated cases to the Supreme Court.