So much for the power of incumbency -- Anti-Washington, throw-the-bums-out feelings held by many.

From The Washington Post:

In Pew Research Center's polling, just over half of Americans said they would like to see their members of Congress reelected next fall. Only 34 percent said they want most incumbents to be reelected in the midterms.

Pew describes those numbers as among the most negative in two decades of collecting data. They approach levels found in the run-ups to the 1994 and 2006 midterms -- elections in which there were significant seat changes in the House and Senate. In October 2006, 55 percent said they wanted to see their lawmakers reelected and 37 percent favored the reelection of most members of Congress; in October 1994, 49 percent favored the reelection of their own lawmakers and 29 percent backed reelection of Capitol Hill incumbents in general.

Even more troubling for incumbents is that independent voters are more down on their elected officials than partisans of either stripe. Only a quarter of independents want to see congressional incumbents reelected next year, while 42 percent support their own lawmakers in the midterms.

What's clear from this and other national polling as well as a variety of state data is that there is a widespread belief that politicians are not acting in the best interests of those they represent. This sentiment isn't terribly new, but the depth of these anti-incumbent feelings -- particularly among political independents -- makes it newsworthy.

While it's likely that any sustained sentiment of this sort will hurt Democrats more than Republicans, this sort of political environment is decidedly unpredictable and could lead to surprising defeats for presumed safe incumbents -- of both parties -- next November.