(CNN)  -- Democratic presidential candidate Sen. Barack Obama on Friday called for an economic plan for working families, saying, "We cannot only have a plan for Wall Street.



Sen. Barak Obama speaks at a campaign rally in Coral Gables, Florida, Friday.



"We must also help Main Street," he said.



While "tough new regulations on financial institutions" are needed, the Illinois senator called for an emergency economic plan for working families.



Obama spoke after meeting with his economic advisers in Coral Gables, Florida. Watch  Obama call for help for Main Street »



Obama on Friday also backed administration and congressional leaders' efforts to develop a "a more stable and permanent solution" to the U.S. financial crisis. Watch Obama talk about how working Americans need help in this economy



Obama's statement came after Treasury Secretary Henry Paulson, Federal Reserve Chairman Ben Bernanke and Securities and Exchange Commission Chairman Christopher Cox met with congressional leaders to discuss a plan that would allow banks to get rid of bad mortgage-related assets that have been a drag on their balance sheets.



"What we're looking at right now is to provide the Treasury and the Federal Reserve with as broad authority as necessary to stabilize markets and maintain credit," Obama said.



"We need a more institutional response to create a system that can manage some of the underlying problems with bad mortgages, help homeowners stay in their homes, protect the retirement and savings of working Americans."



After meeting with his economic advisors, Obama said his team would not present a detailed economic plan at this time, "given the gravity of this situation, and based on conversations I have had with both Secretary Paulson and Chairman Bernanke."



Obama said he would not present his plan until the Treasury and Federal Reserve have presented theirs.



"It is critical at this point that the markets and the public have confidence that their work will be unimpeded by partisan wrangling, and that leaders in both parties work in concert to solve the problem at hand," Obama said.



Later, Obama held a rally, at the University of Miami, which was disrupted by protesters who held up signs saying "Blacks against Obama" and "Obama endorsed by the KKK."



Obama said the protesters could stay and hold up their signs if they stopped shouting, but they were later escorted out after they continued to disrupt the rally.



Obama spoke after Republican presidential candidate Sen. John McCain said Friday morning that he would establish a new agency to deal with the U.S. financial crisis that many experts say is the worst since the Great Depression.  Watch McCain blast Washington corruption »



That agency, a Mortgage and Financial Institutions trust, would work with the private sector and regulators to identify institutions that are weak and fix them before they go broke.



"The underlying principle of the MFI or any approach considered by Congress should be to keep people in their homes and safeguard the life savings of all Americans by protecting our financial system and capital markets," McCain told the Green Bay Chamber of Commerce in Wisconsin.



McCain said the agency would be an early intervention program to help financial institutions avoid bankruptcy, expensive bailouts and damage to their customers.



Obama, at the rally in Florida, lashed out at McCain's plan.



"This morning Sen. McCain gave a speech in which his big solution to this worldwide economic crisis was to blame me for it.



"This is a guy who spent nearly three decades in Washington and after spending the entire campaign saying I haven't been in Washington long enough ... he apparently now is willing to assign me responsibility for all of Washington's failure," he said.



Wall Street witnessed the federal government take unprecedented steps this week to stabilize the economy, including the takeover of the insurance giant American International Group Inc. in exchange for an $85 billion loan from the Federal Reserve.



In his speech, McCain blamed the crisis on "the corruption and manipulation of our home mortgage system" and blasted Congress and the administration for not addressing the problems at the two mortgage giants Fannie Mae and Freddie Mac
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