Washington ? President Obama on Friday scolded business groups that have fought his plan to create a new federal agency to oversee mortgages, credit cards and other consumer financial products, casting the debate as a battle between his administration and Wall Street.

“They’re doing what they always do — descending on Congress and using every bit of influence they have to maintain a status quo that has maximized their profits at the expense of American consumers,” Obama told an East Room audience of Cabinet members, key lawmakers and consumer advocates.

Both the speech and the setting represented an escalation in the administration’s push to expand the government’s role in the relationship between ordinary Americans and the powerful banks that control their access to credit.

Until now, Obama has pressed for a comprehensive package of financial reforms. But on Friday he used his bully pulpit to push for a single, controversial piece of that package: creating a Consumer Financial Protection Agency. His remarks come at a critical moment, as House Democratic leaders try to overcome the doubts of some moderates about the agency. The House Financial Services Committee plans to edit and vote on the legislation beginning as early as next week.

The proposed agency has become the most divisive, partisan element of the administration’s wide-ranging plan to overhaul the nation’s financial regulatory system. Republicans on congressional committees considering regulatory reform have almost uniformly opposed it. Banks and other financial firms, along with armies of lobbyists, have flooded Capitol Hill carrying the message that the new agency would add an unnecessary layer of government regulation, increase costs, stifle financial innovation and ultimately curtail choices for consumers.

“Since they’re worried they may not be able to kill this agency, they’re trying their hardest to weaken it,” Obama said Friday, “by asking for exemptions from this agency’s rules and enforcement; by fighting to keep every gap and loophole they can find.”