After a long and nasty campaign, voters finally decide on Tuesday

Polls indicate a dissatisfied electorate may clean house on Tuesday
No more robocalls interrupting dinner or angry campaign ads at every TV break -- the most expensive mid-term elections in history finally take place Tuesday, when voters decide who goes to Congress and governors' offices.
Polls indicate a dissatisfied electorate may clean house -- literally -- by tossing out the Democratic majority in the House of Representatives and possibly doing the same in the Senate.
With all predictions, including those of Democrats, signaling Republican gains, the election is considered a referendum on both the Democratic-controlled Congress and President Barack Obama's first two years in office.
Losses by the governing party are common in the first mid-term election it faces, but the shift Tuesday could rival or match historic levels dating back decades.
Unemployment of 9.6 percent amid a slow recovery from economic recession has been the dominant issue, with Republicans accusing Obama and Democrats of pushing through expensive policies that have expanded government without solving the problem.
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