LAS VEGAS (AP) — Nevada is up for grabs in President Barack Obama and Republican rival Mitt Romney's general election battle.Obama and Romney are competing against more than just each other in this western swing state. Obama is also fighting against Nevada's dismal economy, while Romney must contend with state's better organized and better funded Democratic machine.The shadow of the economic recession hangs over Nevada as voters weigh their options five months from Election Day.The state's 11.7 percent unemployment rate is the highest in the nation. And its once booming housing market has become a foreclosure wasteland. One in every 300 homes in the state received a foreclosure filing in April, according to the foreclosure listing firm RealtyTrac.