A member of the progressive leftist "Squad" in Congress, Rep. Cori Bush (D-MO), lost her primary election on Tuesday to a marginally more moderate Democratic challenger, a local St. Louis prosecutor named Wesley Bell.

Bush compounded the embarrassment of that defeat with an angry on-stage rant to her supporters and a vow of revenge against a prominent pro-Israel political group that financially backed her opponent, according to the Daily Mail.

That group is the American Israel Public Affairs Committee, or AIPAC, which also played a key role in the July primary defeat in New York of another "Squad" member, Rep. Jamaal Bowman (D-NY), who like Bush has been outspoken in his antisemitic opposition to the nation of Israel.

Bush lashes out

In her rant against AIPAC during her post-election speech, according to the Daily Mail, Rep. Bush shouted at one point, "Pulling me away from my position as congresswoman, all you did was take some of the strings off."

"Because now, there are some strings that I have attached. And as much as I love my job, all they did was radicalize me, and now they should be afraid," the already radical leftist continued, according to The Hill. "They’re about to see this other Cori, this other side. There is nothing that happens in my life that happens in vain. So, this happened because it was meant to happen. And let me say, it’s because of the work that I need to do."

"And let me say this: AIPAC, I’m coming to tear your kingdom down!" the soon-to-be-ex-congresswoman declared to uproarious applause from her supporters.

Bush then turned her attention to other unnamed "corporations" in her rant, per the Daily Mail, and proclaimed, "And let me put all of these corporations on notice: I'm coming after you too. But I'm not coming by myself. I'm coming with all the people that's in here."

"I don't fear you," she added. "I don't fear anything ... so if this happened it was meant to happen."

AIPAC celebrates defeat of Bush

Per the Daily Mail, AIPAC is reported to have financed Bell's campaign against Rep. Bush to the tune of nearly $9 million, which was a little more than half of the estimated $15 million spent by the group in support of Westchester County Executive George Latimer, who defeated Rep. Bowman in New York's primary last month.

In an X post on Wednesday, the group wrote, "AIPAC and our 4.5 million grassroots members were proud to help progressive pro-Israel leader Wesley Bell defeat anti-Israel Squad member Rep. Cori Bush last night. Being pro-Israel is good policy and good politics!"

The Hill observed that other progressive "Squad" members, such as Rep. Alexandria Ocasio-Cortez, have sharply criticized AIPAC for supposedly being a Republican-aligned organization that is meddling in Democratic primary elections, but AIPAC insisted in a statement that it backs pro-Israel candidates from both parties, is "the largest PAC contributor to Democratic candidates," and has no problem supporting progressives so long as they aren't anti-Israel.

Bell defeated Bush by nearly five points

The local Fox affiliate in St. Louis reported that with 100% of precincts now reporting results, Bell won the Democratic primary for Missouri's 1st Congressional District with 51.16% of the vote over incumbent Rep. Bush's 45.62% share of the electorate.

In a statement following his victory that took a subtle swipe at his opponent and her many controversial actions and commentary, the Associated Press reported that Bell said, "I am committed to serving the St. Louis region in Congress with integrity, transparency, and dedication. Together, we will tackle the challenges ahead and build a community where everyone has the opportunity to thrive."

Bush was a Black Lives Matter activist who rose to prominence following the anti-cop protests and riots in Ferguson, Missouri, in 2014, while Bell also used that unrest to win a city council seat and pursue policing reforms through the political process.