WASHINGTON - Barack Obama raised $41 million in March and had $42 million available to spend against debt-ridden Democratic rival Hillary Rodham Clinton in April, campaign finance reports filed Sunday show. Clinton reported raising $20 million in March and had $9 million for the primary available at the beginning of April. But she also reported debts of $10.3 million, putting her in the red.Overall, Obama had $51 million in the bank at the end of March, with nearly $9 million of that available only for the general election. The money positioned Obama to undertake an expensive April campaign in Pennsylvania,...