Moreover, he said that bridge was no longer owned by the state, and that he had “no authority in this situation,” while conceding that there was no set timetable for reopening the eastern span.
Ms. Nixon weighed in on the mailer before her own news conference later Sunday in Tarrytown.
“This is an attack not only on my children and my character, but on all New Yorkers,” Ms. Nixon said. “It’s sickening, at a time when anti-Semitic, Islamophobic and other hate crimes are on the rise, to exploit people’s real fears like this.”
The party would not say who was responsible or how many mailers were sent, though the party’s executive director, Geoff Berman, said on Twitter he had not personally approved the piece, which he said was a “mistake” and “inappropriate.”
In a statement, the Democratic Party said, “The state party sent out a wrong and inappropriate mailer — we will work with the Nixon campaign to send out a mailing of their choosing to the same universe of people.”
Mayor Bill de Blasio, who formally decided not to endorse a candidate in the primary race, condemned the mailer, calling it “Trumpian” and called for the party to “compensate” Ms. Nixon.
“A tweeted ‘apology’ calling it a ‘mistake’ is laughable,” Mr. de Blasio wrote.
In a joint statement, Ms. Nixon’s rabbi, Sharon Kleinbaum, and Rabbi Kleinbaum’s wife, Randi Weingarten, the head of the American Federation of Teachers, also condemned the mailer, calling it a baseless lie.
Mr. Cuomo’s campaign had transferred $2.5 million to the state party in August, in part to fund political mailers and television ads.