The Tea Party was born out of the disgust many Americans felt early in the financial crisis upon learning that the federal government was even contemplating reducing the principal on some troubled mortgages.

There is plenty of blame to go around for the U.S. housing bubble, but not much of it belongs to Fannie Mae and Freddie Mac. The two giant housing-finance institutions made many mistakes over the decades, some of them real whoppers, but causing house prices to soar and then crater during the past decade weren't among them.

Lenders look at potential borrowers from many angles before extending credit: How much of its income will a household need to put into debt repayment? How large is the down payment? Does the borrower have a job with a stable income? What is the borrower's credit score?

The Obama administration deserves credit for quickly ending the housing free fall. In particular, Obama empowered the Federal Housing Administration to ensure that households could find mortgages at low interest rates even during the worst phase of the financial panic.