That's completely wrong, according to the commission that studied the financial crisis. Low-cost loans defaulted at a significantly lower rate than others. Community Reinvestment Act-related loans did not cause the mortgage crisis and subsequent collapse. It was people using their houses as credit cards combined with the Las Vegas-style Republican-led deregulation of the banks. And looks like Republicans haven't learned their lesson, removing regulations put in place after the Bush-GOP Great Recession. Here we go again!