While Bustos hasn't showed signs she will be reversing the policy, Pocan told Politico he believes they are still having an "open conversation" and "there’s more to come" with their conversation.

"Let's be clear. If this policy remains in place, it will mean that we will not allow new Ayanna Pressleys or AOCs to emerge. It's simply wrong," Khanna told the Intercept. "It's also hypocritical for a party that champions strong antitrust. The DCCC is acting as a monopoly by saying that anyone who does business with them can't do business with any competition. It's the classic antitrust violation and an unfair restraint on trade. Many progressives in Congress will fight until this rule is changed. We stand for reform in Congress and reform of the Democratic Party machinery to make sure they prioritize our voters and the grassroots."

Ocasio-Cortez has vocally opposed the new policy on Twitter and has advised small-dollar donors to donate directly to Democratic primary challengers.

"The @DCCC’s new rule to blacklist+boycott anyone who does business w/ primary challengers is extremely divisive & harmful to the party," Ocasio-Cortez tweeted. "My recommendation, if you’re a small-dollar donor: pause your donations to DCCC & give directly to swing candidates instead."