The head of JPMorgan Chase and a potential Treasury secretary candidate says he’s gearing up for a “knife fight” with the country’s top consumer watchdog agency — just after a lobbying group he chairs sued the agency to protect a scheme that prevents consumers from switching banks and particularly benefits his own bank.

The attacks come as corporate interests explicitly call for the ouster of successful consumer protection reformers within the Biden administration — and suggest that no matter who wins the election, big banks will be angling to ensure they’re free to waylay and swindle their customers.