By Dustin Beilke

We've gotten used to birthers and tea partiers. Heck, I sometimes even enjoy them.

But now the time has come to gird our loins for the "tenthers." These are the men and women among us who believe that the Constitution's 10th Amendment deems that things like Social Security, Medicare and the federal Department of Education are unconstitutional because they are not mentioned by name in the Constitution. Adherents to this particular faith include GOP U.S. Senate candidates Ken Buck and Sharron Angle, and it is not impossible to imagine that there are incumbent senators who hold this view but have been advised against expressing it out loud.

As we continue to hear more and more about the enthusiasm gap between Democrats and Republicans, it is helpful to remember that tenthers, birthers and tea partiers are enthusiastic about voting and having their voices heard. A recent poll found that among those who voted for Obama in 2008 only 8 percent plan to vote Republican on November 2. The bad news is that only about half of those who voted for Obama in 2008 are intent upon voting at all.

For Democrats, that is the definition of an organizing opportunity. And the fate of public education, Social Security and Medicare may rest on it.