Obama, McCain make closing arguments

SPRINGFIELD, Va. - Warmed by the cheers of thousands, John McCain and Barack Obama plunged through the final weekend of their marathon race for the White House, the Republican digging for an upset while his confident-sounding rival told supporters, "We can change this country."

"Yes, we can," Mr. Obama said, his slogan across 21 months of campaigning.

Both candidates were backed by legions of surrogate campaigners, door-to-door canvassers and volunteers at phone banks scattered across the country as they made their final rounds yesterday in a race that carried a price tag estimated at $2 billion.

Mr....