An epic throw-down happened Thursday on Capitol Hill. The topic: the Consumer Financial Protection Bureau, the agency created in the wake of the 2007-08 financial crisis. The Trump administration's acting director, Mick Mulvaney ... believes the bureau's powers are excessive. Sen. Elizabeth Warren ... led the creation of the bureau to protect consumers from abuses by everything from big banks to student loan providers to fly-by-night loan sharks. Mulvaney ... calls the bureau Warren's baby." But Democrats say that over the past five months, he has done a terrible job of taking care of it. Back when he was a Republican congressman, Mulvaney sponsored legislation that would have abolished the bureau. Since its creation, the bureau has returned a total of $12 billion to consumers by clawing back money from companies that cheated them. Thursday's hearing was part of Mulvaney's mandated semiannual report to Congress on the activities of the CFPB. In a hearing ... New York Democrat Carolyn Maloney said the bureau used to bring several enforcement actions a month against financial companies. She pressed Mulvaney: "So let me ask you how many enforcement actions has the bureau initiated since you took over?" Mulvaney: "We have initiated none since I've been there." Mulvaney ... is asking lawmakers to put the bureau's budget under the control of Congress. The bureau ... is funded by the Federal Reserve instead of by Congress, a move designed to shield it from political influence.