But the 70-year-old mayor elected last fall after more than two decades as a Democratic congressman rejected calls to resign.
On Thursday, four more women came forward to publicly accuse him of unwanted sexual advances or improper conduct, following three who leveled accusations earlier in the week.
He has insisted that "due process'' will clear him, even as San Diego sinks deeper into a city hall scandal with allegations that make New York mayoral hopeful Anthony Weiner's sex texting seem mild by comparison.
As Filner points a finger at political rivals as well as himself for his problems, petitions to recall him from office are about to hit the streets.
