Senate Democrats are asking the public for dirt on President-elect Trump’s pick for treasury secretary, Steven Mnuchin, a maneuver that indicates just how contentious the nomination is likely to be.

Democrats on Friday introduced a new website set up to solicit stories of abuse from customers of OneWest Bank, the bank that Mnuchin purchased from regulators at the height of the crisis and managed. Under Mnuchin’s leadership, the bank was accused of extremely aggressive foreclosure practices and of discriminating when it came to approving or rejecting new loans. His track record there is sure to be a focal point of Senate hearings.