So the 2013 tax cliff is a big enough economic problem that President Obama now wants to postpone it for some taxpayers. But it isn't so big that he's willing to curb his desire to raise taxes on tens of thousands of job-creating businesses.

That's the essence of Mr. Obama's announcement Monday that he wants Congress to extend current tax rates for a year, but only for those making less than $200,000 a year. This is a political gambit designed to protect Democrats who are starting to feel queasy about opposing GOP plans to...