According to the Obama administration’s Office of Management and Budget, the federal government will have to borrow nearly 40 percent of its total expenditures in 2010. This squiggly-decorated report , titled Mid-Session Review, Budget of the U.S. Government, Fiscal Year 2010 , gives the bad news. The second largest component of federal revenue — after this unprecedented level of borrowing — is personal income tax, which accounts for only 27.3 percent of federal fund, according to a