WASHINGTON -- The Obama administration, after months of criticizing Wall Street, has been scrambling to woo top bankers and financiers to back its latest bailout plan.

In recent days, in spite of public furor over huge bonuses paid at American International Group Inc., the administration has concluded that it needs the private sector to play a central role in fixing the economy. So over the weekend, the White House worked to tone down its Wall Street bashing and to win support from top bankers for the bailout plan announced...