The Jewish Federation of Greater Philadelphia called the incidents "disturbing acts" that challenge "our city’s fundamental commitment to tolerance."
The synagogue, which is one of the oldest in the US, was subjected to three separate incidents over a few days.
Harris’s campaign sees Jewish voters in seven swing states as critical targets.
Temple University is investigating a pro-Palestinian protest where demonstrators targeted the campus Hillel, leading to potential disciplinary actions for students involved.
The ADL filed a civil rights complaint against the Philadelphia School District for failing to address systemic antisemitism in schools.
The Jewish Federation of Greater Philadelphia said the mayor's office quickly replaced the defaced flag.
Littman's granddaughter, Sarah Littman said that her grandfather, an engineer, was married for 65 years.
Philadelphia-area synagogues vandalized with antisemitic graffiti. Governor, CNN anchor condemn acts. Incidents believed related to Israel-Hamas conflict.
Pennsylvania Governor Josh Shapiro sternly addressed the incident, saying, "Tonight in Philly, we witnessed a blatant act of antisemitism."
Just four days into July, three different cities in the US have experienced mass shootings so far this month.