Mortgage rates were little changed Wednesday in quiet trading. In economic news, payroll firm ADP estimated private sector job growth of 170,000 in January, in line with forecast. Construction Spending rose by 1.5%, beating estimates. The Institute for Supply Management manufacturing index came in at 54.1, below expectations. President Obama is expected to announce details of a new government refinance proposal today, to be administered by the Federal Housing Administration (FHA). The plan will require Congressional approval, which seems unlikely due to concerns about the current financial health of the FHA and potential costs to taxpayers.