According to the Wall Street Journal, these days, Democrats worry about their own rich voters:

A group of Democrats elected in recent years from some of the country’s richest congressional districts have emerged as a stumbling block to raising taxes on the wealthy to pay for President Barack Obama’s ambitious health-care overhaul just as the plan has begun to meet increasing resistance over its cost.
Friday, two freshmen representatives — Dina Titus, from suburban Las Vegas, and Colorado’s Jared Polis, representing Boulder, Vail and some of the tonier suburbs of Denver — joined Republicans to vote against Mr. Obama’s top-priority health-care overhaul when it faced a vote in their House Education and Labor Committee. One reason was a one-percentage point-surtax on couples earning between $350,000 and $500,000 — gradually increasing to 5.4 percentage points on earnings more than $1 million — to pay for it.

But this is the data that continues to amaze me:

Election gains in some of these affluent regions have helped give Democrats big majorities in the House and Senate. Of the 25 richest districts, 14 are represented by Democrats, according to Congressional Quarterly. In 1995, Democrats represented just five of those districts.

What were people thinking? Didn’t they see it coming? How is this possible?

The whole thing here.