Witnesses say the suspect pulled out a gun on the rabbi and tried to force him into the car. When the rabbi tried to flee, the suspect stabbed him repeatedly.
Police are treating the vandalism as a hate crime.
Rabbi Chaim Kanievsky tests positive for virus in country with high percentage of confirmed cases in ultra-Orthodox community.
Rabbi Romi Cohn was hailed as "a role model to the Jewish community" after being struck down by COVID-19 on Tuesday.
"She is pointing out how racism and ugliness is now normalized by our current president," the teacher said.
"My opinion is the Jews are evil and they get what's coming to them."
Vice President Pence faced a backlash from mainstream Jews after messianic rabbi prayed before Pence's speech in Michigan.
Rabbi Jeffrey Myers said the president of the United States was always welcome.
First his uncle, now this.
Ivanka Trump and Jared Kushner's Washington, D.C., rabbi, Levi Shemtov, has weighed in on President Donald Trump's policy of separating children from their parents at the southern border.
"If isolating and boycotting Israel and embracing Putin's Russia is not bigotry, then the word has no meaning."
The conference follows calls from a top European rabbi for armed security guards in Jewish communities.
Rabbi Menachem Margolin of the European Jewish Association wants a change in law to allow Jews to arm themselves.
Police shot a man after he stabbed a 22-year-old Israeli student in the head.