Protesters gathered under a warm sun in Frank Ogawa Plaza by Oakland City Hall Saturday for a pre-election rally in favor of Proposition 1, which would make abortion a right under California’s Constitution.  Carrying signs that read “Supreme Illegitimacy” and “Politicians Make Lousy Doctors,” about 100 people came to hear speakers from Planned Parenthood, the medical community and  other abortion rights activists. Pre-made posters were scattered about the plaza, including one of a Supreme Court justice with red hangers at…