Elon Musk’s allies inside the Trump administration are newly vulnerable after the mogul’s bitter public breakup with the president.

MAGA loyalists are taking advantage of the Trump-Musk rift to threaten the standing of anyone in the administration who’s perceived as too close to the Tesla CEO. Leading that charge is former Trump adviser Steve Bannon, whose long-running animosity toward Musk peaked last week with the former calling to deport Musk from the US and the latter deeming Bannon a “Communist retard.”

Among the potential Bannon targets: David Sacks, the venture capitalist tapped by Trump as artificial intelligence and cryptocurrency czar. Sacks has invested in Musk’s SpaceX and, like Musk, is a member of the so-called PayPal Mafia (early PayPal employees and founders who are a Silicon Valley force).