Alexandria Ocasio-Cortez's Win Gets Ugly for Democrats in Heated Twitter Spat With Joe Crowley

It's been weeks since Alexandria Ocasio-Cortez upset Congressman Joe Crowley in a shocking Democratic primary win that saw constituents embrace the winner's progressive campaign, but the tension between the two remains heated.

"[Crowley] stated on live TV that he would absolutely support my candidacy," Ocasio-Cortez tweeted Thursday. "Instead, he's stood me up for all 3 scheduled concession calls. Now, he's mounting a 3rd party challenge against me and the Democratic Party."

Crowley hit back at Ocasio-Cortez's complaint and claimed her campaign team was the reason he has not been able to make a concession call. "Alexandria, the race is over and Democrats need to come together. I've made my support for you clear and the fact that I'm not running," he said. "We've scheduled phone calls and your team has not followed through. I'd like to connect but I'm not willing to air grievances on Twitter."

The Twitter spat stems from a New York state election law, according to NBC News. Crowley has refused to remove his name from the ballot after his primary loss because, as the law has outlined, he would either have to switch candidacy to run for a different office or register to vote in a state other than New York to have his name taken off, both of which he has refused to do.

"It is disappointing that Crowley has refused to vacate the Working Families Party ballot line," Bill Lipton, the New York director of the Working Families Party told NBC News. "The only remaining way for Crowley to do the right thing is to switch his residency to Virginia, where his family resides and his children already go to school. It would fix the problem he created in an instant."

Ocasio-Cortez, who ran her campaign as a Democratic-Socialist, has seen her national profile rise significantly in the wake of her primary election win. "I'm an organizer in this community, and I knew living here and being here and seeing and organizing with families here, that it was possible," Ocasio-Cortez told The New York Times after her win. "I knew that it was long odds, and I knew that it was uphill, but I always knew it was possible."

But it has also reignited a debate among Democrats over whether to pursue a more progressive national agenda ahead of the 2018 midterms.

The former community organizer topped Crowley, who was viewed by some a possible replacement for House Minority Leader Nancy Pelosi, by more than 15 percentage points to capture 57.5 percent of the vote in New York's 14th House district.

Ocasio-Cortez tweeted after the election: "We pulled off an enormous upset, against all established power and big money, because of a few groups and people that had the political courage and moral vision to support us early."

Progressive challenger Alexandria Ocasio-Cortez checks her laptop after upsetting incumbent Democratic Representative Joseph Crowley, in New York, on June 26. Crowley’s 14th Congressional District includes parts of the Bronx and Queens. Scott Heins/Getty Images