Amid deep pessimism about the economy, the coalition of voters that gave Democrats control of Congress in 2006 appears to have fractured.
Preliminary exit polls showed that the party lost ground in Tuesday's midterm elections among women, middle-income workers, whites, seniors and independent voters.
Driving the shift to the GOP: broad anxiety over the economy, as well as skepticism of big government and opposition to signature Democratic Party policy achievements, such as President Barack Obama's economic stimulus package and the health-care overhaul.
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