Mexico president backs Jewish candidate after selection process row.
Two polls on Tuesday gave Sheinbaum a double-digit lead over her main rival for the MORENA candidacy, former foreign minister Marcelo Ebrard.
In response to criticism of his comments, Fox tweeted out rebuttals, calling Sheinbaum a “Bulgarian Jew” and Marcelo Ebrard, a former foreign minister also in the Morena party, a “French snob.”