GREEN, Ohio - John McCain wants Americans to get rich.

That was the message from the Republican presidential hopeful Wednesday as he focused again on the differences in his tax proposals and those of Democratic rival Barack Obama.

The Arizona senator has hammered Obama in recent days for a philosophy of spreading Americans’ wealth around, articulated by the Illinois senator in a now famous exchange with an Ohio man dubbed Joe the Plumber.

McCain promised at an outdoor rally with an enthusiatic crowd he and his running mate, Alaska Gov. Sarah Palin, would not make people or businesses send more money to the federal government.

“Sarah Palin and I will not raise your taxes, my friends,” he said. “We want you to get wealthy.”

Palin weighed in on the theme, too, calling Obama “Barack-the-wealth-spreader” and warning the crowd: “You have to really listen to our opponent’s words because he’s hiding his real agenda of redestributing your hard-earned money.”

The Obama camp was unmoved. At a press conference, the Illinois senator brushed off the charges as just another attack strategy by his rivals. “They have been trying to throw whatever they can up against the wall to see what sticks, and this is their latest version,” Obama said.

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Photo credit: Carlos Barria (McCain, with wife Cindy, reacts to supporters in Harrisburg, Pennsylvania