Gov. Andrew Cuomo called the mailer casting his Democratic primary opponent Cynthia Nixon as an anti-Semite “a mistake” and insisted he has been running a positive campaign.

“Israel is an important issue. There is strong support for Israel and there are strong opinions about Israel,” he told reporters after voting in Westchester County. “The mailer was a mistake. I said that as soon as it came to light, as soon as I saw it. I ran this campaign fully positive. I didn’t say a negative word about my opponent.”

Cuomo’s campaign, however, has sharply criticized Nixon, an actress and education, as an inexperienced entertainer, and his allies have released statements alluding to her role on the Sex and the City franchise.

Cuomo is seeking a third term this year. The mailer, which hit mailboxes over the weekend, was signed off on by Larry Schwartz, a former top aide to Cuomo. The campaign insisted Schwartz had only viewed the “positive side” of the mailer.

“It was not proofread and that was a mistake,” he said. “The tone was not appropriate.”

Cuomo once again criticized President Trump as well, knocking his tweet this morning questioning the official death toll of nearly 3,000 people in last year’s hurricane that battered the island. Cuomo has framed his re-election bid as a way of pushing back against Trump.

“This president is delusional,” Cuomo said. “What he did in Puerto Rico, I think first of all, is illegal. We’re looking to sue him on Puerto Rico.”

Polls have indicated Cuomo is heavily favored to win, but the Nixon campaign has cast doubt on those surveys given progressive upset victories in Queens and Massachusetts earlier this year.

Cuomo retains several additional ballot lines heading into November.

Asked if he would remain on those lines going into the fall, Cuomo joked, “No, I’m going to become a journalist and then just second-guess everybody else because that’s a lot easier and say, ‘why didn’t you do this, why didn’t you do that.'”