Lieberman is currently senior counsel at Kasowitz Benson Torres LLP, the law firm of President Trump’s longtime lawyer Marc Kasowitz. In 2006, he lost the Democratic primary for Connecticut senator to Ned Lamont, who ran against hawkish Lieberman on an anti-war platform.

\"PHOTO:
Olivier Douliery/AFP/Getty Images
PHOTO: Senator Joe Lieberman leaves the West Wing of the White House after meeting with President Donald Trump on May 17, 2017 in Washington.
>

Unlike Crowley, Lieberman had discussed a backup option before his primary defeat, resolving to campaign as an independent if he lost. Immediately following Lamont’s victory, Lieberman vowed to campaign through November, and he went on to defeat Lamont in the general election, running as an independent on the “Connecticut for Lieberman” ticket.

Wednesday morning, Crowley tweeted: “Still not running.”

Still not running.

— Joe Crowley (@JoeCrowleyNY) July 18, 2018

Crowley has said he will support Ocasio-Cortez and even sang “Born to Run” in her honor after her victory.

“So much for “Born to Run,” Ocasio-Cortez tweeted last Thursday in reference to Crowley’s refusal to take his name off the ballot.

So much for “Born to Run.”

If you want to see me in Congress, we need your help now more than ever. We cannot underestimate the power of dark money.

Support us now: https://t.co/piU7pXr9CU

— Alexandria Ocasio-Cortez (@Ocasio2018) July 12, 2018

The Working Families Party, caught in the crossfire, had originally endorsed Crowley in the primary but has since enthusiastically backed Ocasio-Cortez.

On Wednesday, the party strongly disavowed Lieberman’s opinion piece on Twitter, writing that New York voters shouldn’t take their cues from the ex-Senator.

Reminder that this is the same Joe Lieberman who:

? Undercut Dems in the 2000 recount
? Cheered Bush-Cheney's march to war
? Lost his primary in 2006 & refused to accept the result
? Endorsed GOP vs Obama in 2008
? Killed Medicare expansion & public option in 2009

2/

— NY Working Families (@NYWFP) July 18, 2018

In the same thread, the party wrote: “We asked [Crowley] to remove himself from the November ballot, but he refused.”

If Crowley decides to be removed from the ballot, his clearest option is to be nominated by the Working Families Party to a different race.

Bill Lipton, the Working Families Party’s New York director, told ABC News that the party offered Crowley an alternate endorsement in order to vacate the ballot line, but Crowley declined.

“There are routine procedures to remove candidates from the ballot in New York, and we were disappointed that Crowley refused to work with us to get off of the ballot line,” Lipton told ABC News.

Crowley's presence on the ballot is unlikely to affect the outcome of the race.

“It’s a ballot switcharoo charade [Crowley] doesn’t want to participate in, and he’s endorsed her, and there’s no doubt that she will win,\" veteran election lawyer Jerry H. Goldfeder told ABC News.

As of now, however, Crowley will remain an option for voters. A campaign spokesperson for Crowley declined to say whether he intends to remove his name from the ballot.

\"Joe Lieberman has every right to his opinion. Joe still isn't running,\" the spokesperson said in a statement to ABC News.

Ocasio-Cortez, who is a card-carrying member of the Democratic Socialists of America, defeated Crowley by a 15-point margin after campaigning on a left-wing platform of social and economic justice.

In his article, Lieberman argued that Ocasio-Cortez will shift the Democratic party too far left, imperiling Democrats’ chances to take back the House and Senate in upcoming midterm elections.

“If Democrats are to regain a majority, it will be by winning swing districts with sensible, mainstream candidates,” Lieberman wrote, pointing out that Nancy Pelosi has distanced herself from the left-wing insurgent.

In a further twist, Lamont, the candidate who defeated Lieberman in the 2006 primary, is currently running for Connecticut governor against Bridgeport Mayor Joe Ganim. Lamont is heavily favored to win.

The Ocasio-Cortez campaign declined to comment, and Lieberman did not respond to a request for comment.

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