The money positions Obama for the sweeping Feb. 5 primary contests, when 22 states will be in play for the Democratic nomination. Aides also announced that with their money they can now advertise in states beyond the Super Tuesday contest next week.
Obama is advertising in all but two of the Feb. 5 states and plans to begin advertising in states with upcoming contests, including Louisiana, Washington, Nebraska, Maine, Maryland, Virginia and Washington, D.C.
Campaign manager David Plouffe said the campaign attracted 170,000 new donors for a total of 650,000 donors overall.
"We think that the strength of our financial position and the number of donors does speak to financial sustainability if it ends up going through March and April," Plouffe said of the race. "We think we will have the financial resources to conduct vigorous campaigns in the states to come."