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By Ben Feller, AP White House Correspondent
JACKSONVILLE, Fla. (AP) -- Reflection over Sept. 11 quickly past, the race for the White House is returning to fierce form, with negative ads free to fly again and the candidates spreading out from Florida to Ohio to Nevada.
In a campaign speech and a new TV ad, President Barack Obama is set to accuse Republican Mitt Romney of failing to explain how he would pay for trillions of dollars in tax cuts. The president is heading west, to Nevada, on Wednesday.
Romney, in the midst of a campaign week that has slingshot him across the nation, is holding one event Wednesday, at his own campaign office in Jacksonville, Fla. He is expected to make the case for how the nation's debt is undermining job creation and economic growth.