Just a few months removed from last year's midterm elections, the wave that swept Republicans to an epic victory has already receded, as they now trail Democrats in a generic election ballot, according to the latest TPM Poll Average.
Last year, Republicans held a huge edge in generic ballot surveys as voters turned against the party in power, Democrats. But since taking over control of the House of Representatives back in January, that big lead has quickly evaporated, giving Democrats an edge they haven't had in the TPM Poll Average in about a year and a half, since November 2009.
The poll that tipped the scales came this week from CNN. In that survey of adults nationwide, Democrats emerged with a 50% to 46% edge over Republicans. As a result, the TPM Poll Average shifted just enough to give Democrats a tiny lead, 42.4% to 42.2%.
But that minuscule lead has been awhile in the making. Check out the trend lines:
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http://tpmdc.talkingpointsmemo.com/2011/05/dems-retake-edge-in-generic-ballot-for-first-time-since-2009.php