WASHINGTON – Freshman Rep. Alexandria Ocasio-Cortez denounced a conservative group on Twitter on Wednesday after it labeled her as a "domestic terrorist," saying similar rhetoric consistently leads to a spike in threats against her life.

Ocasio-Cortez, a Democrat representing New York who has become both a social media star and a favorite target for Republicans, was criticizing a fundraising email sent out by the Ohio College Republican Federation with the subject line: "AOC is a domestic terrorist."

The email, which was posted by Dave Levinthal, a politics editor at The Center for Public Integrity, included that the conservative group was asking for donations to "stop the brainwashing" that has college students thinking that Ocasio-Cortez is a "role model."

"This puts me in danger every time. Almost every time this uncalled for rhetoric gets blasted by conserv. grps, we get a spike in death threats to refer to Capitol Police," Ocasio-Cortez posted on Twitter. "Multiple ppl have been arrested trying to harm me, Ilhan, & others. @GOP, what’s it going to take to stop?".

Ocasio-Cortez's office did not immediately respond to questions about the death threats and whether any arose from this specific email.

The conservative group apologized after Ocasio-Cortez's tweet, writing that it "does not condone the unauthorized email sent out in our name."

"We apologize to Congresswoman Ocascio-Cortez for the use of unacceptable language in this email, and we do not approve of the message conveyed," the Ohio College Republican Federation said on Twitter.

In her tweet, Ocasio-Cortez also referenced fellow freshman Rep. Ilhan Omar, whose views and comments have also sparked controversy.

Omar was accused of anti-Semitism for her criticisms of Israel and pro-Israel American lobbying organizations. She was criticized again this week for remarks that surfaced in which she referred to the 9/11 terrorist attack that killed nearly 3,000 people as "something" that "some people did."

Omar's comment about the terrorists prompted Fox News co-host Brian Kilmeade to question the congresswoman's loyalty to the United States.

"You have to wonder if she's an American first," Kilmeade said Wednesday on "Fox & Friends."

She was also criticized by fellow freshman Rep. Dan Crenshaw, R-Texas.

In November, Omar and Rep. Rashida Tlaib, D-Mich., became the first Muslim women ever elected to Congress. She responded to both Crenshaw and Kilmeade in a tweet, calling it a "dangerous incitement, given the death threats I face."

"I hope leaders of both parties will join me in condemning it. My love and commitment to our country and that of my colleagues should never be in question. We are ALL Americans!" she said.

Last week, a New York man was arrested for threatening Omar and saying he would "put a bullet" in her "skull."