Westchester County Executive Rob Astorino on Thursday sent a fundraising email asking donors to back Republican John Faso in the race for the 19th congressional district.

“I’m going all in for John Faso’s vision of America,” Astorino writes. “It’s the future that overtaxed and underemployed New Yorkers desperately need.”

In the email, Astorino paints Teachout as a far-left candidate who wants to raise taxes and backed the nuclear arms control agreement with Iran.

“John Faso believes that Hillary Clinton and Andrew Cuomo are liberals. Prof. Teachout thinks they’re right wingers,” Astorino writes in the email.

“John Faso is an ardent supporter of Israel who believes in tough, anti-terrorism policies. Prof. Teachout supported President Obama’s unconscionable deal with Iran’s mullahs that will give the world’s biggest sponsor of terrorism nuclear weapons inside of 10 years. Faso opposed Obamacare. Teachout supported it. Teachout wants taxpayer money to fund political campaigns. John Faso will fight to stop welfare for politicians.”

Astorino, the party’s 2014 nominee for governor, is considering another statewide campaign in 2018. He nearly faced a challenge for the nomination from Rep. Chris Gibson, who is retiring from the 19th congressional district this year, with both Faso and Teachout vying to replace him in the Hudson Valley seat.

Astorino in the past has actually appeared alongside Teachout during the 2014 campaign when she was running against Cuomo for the Democratic primary, including a September debate ahead of the primary that year. At the time, both were slamming Cuomo for his decision to shutter the anti-corruption Moreland Commission, common ground for both candidates opposing the governor.