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WASHINGTON-- An administration official says President Barack Obama will travel to Detroit Monday to push his proposal for raising tax rates on wealthier Americans.

The trip is part of Obama's effort to get public backing for his positions and use that support to pressure Republicans to reach a deal on the "fiscal cliff."

The president says there can't be a deal until GOP lawmakers drop their opposition to increasing rates on the top 2 percent of income earners.

Fiscal Cliff: Expanded Coverage

Obama launched his public appeal during a trip to Pennsylvania last week. The official requested anonymity in order to discuss the trip before it is publicly announced.