Mr Emanuel brushed aside concerns that an Obama administration would risk taking on too much when it takes office in January. He said Mr Obama saw the financial meltdown as an historic opportunity to deliver the large-scale investments that Democrats had promised for years.

Tackling the meltdown would not entail delays in plans for far-reaching energy, healthcare and education reforms when all three were also in crisis, he said. “These are crises you can no longer afford to postpone [addressing].”

Mr Emanuel, Mr Obama's first appointment after his emphatic victory over John McCain last week, added that Mr Obama would push hard during the 11-week transition before he is inaugurated for early assistance to the collapsing US car industry, which he described as “an essential part of our economy”.