Charles Krauthammer’s latest column is titled “The Union-Owned Democrats.” In it, he recounts a litany of economically ruinous actions being pursued by unions around the country, from blocking free trade agreements to hobbling Boeing’s efforts to compete with Airbus. He writes that “unions need Democrats — who deliver quite faithfully,” and that “Democrats need unions.”

Like a hole in the head.

Yes, it’s been a politically and financially symbiotic relationship for many decades. Unions get rents, Democrats get elected. But, as I argue in a cover story for The American Spectator this month (now on-line: “A Less Perfect Union”), it can’t last.

The biggest unions of all are the public school employee unions—the AFT and the NEA—with well over 4 million members between them. As I point out in my Spectator piece, these unions have become too successful for their own good—and for the good of the Democratic party.

In their game of Monopoly with American kids and taxpayers they have created staggering bloat in public school employment (which has grown 10 times faster than student enrollment over the past 40 years), and they have wheedled total compensation packages worth $17,000 more per year than those of their private sector counterparts (who, according to most of the research, outperform them in the classroom).

But the union-led public school spending spree has nearly bankrupted states all over the country. If California’s public schools had just maintained the same level of efficiency they’d had in 1970 (not gotten better, as other fields have, just stagnated), it would turn the state’s $26 billion deficit hole into a surplus.

Americans are rapidly running out of money to pay for their states’ school monopolies, and they are rapidly introducing school choice bills (42 states have done so this year), to give families alternatives. But as families escape the highly unionized monopoly and send their kids to school in the largely non-unionized private sector, teachers union power will implode. And resentment at having been gored for so long by the now bankrupt and discredited system will focus on the party that fought to preserve it until the bitter end… Democrats.

In my Spectator piece, I explain why that would be a bad thing, and what Democrats could do to avoid that fate. “Public schooling” is just a tool, and an ineffective, unaffordable one at that. Public education is a set of goals and ideals that can be advanced much more effectively by other policy mechanisms. The sooner Democrats realize that, the less likely they are to be dragged to the bottom of the political sea by the sinking union-helmed school monopoly.