Democrat Barack Obama raised $7.2 million and rival Hillary Rodham Clinton collected $6.4 million since Super Tuesday, as he continued to resist a Clinton campaign clamoring for attention-getting debates.
Obama has been riding a wave of fundraising from large donors and small Internet contributors.
Clinton also saw an online surge of donations from 35,000 new contributors since midnight Tuesday
Clinton acknowledged Wednesday that she loaned her campaign $5 million late last month
Buoyed by strong fundraising and a primary calendar in February that plays to his strengths, Obama plans a campaign blitz through a series of states holding contests this weekend
Clinton, with less money to spend and less confident of her prospects in the February contests, plans to concentrate on Ohio and Texas