McCain is talking about Obama wanting to raise taxes on "Joe the plumber". Obama says he'd offer a tax cut to 95 percent of Americans. He would only actually raise taxes on the top 5 percent by income.

There's a simple way to understand the tax policies. Obama's tax plan would be better for the bottom 80 percent of Americans by income. McCain's would favor the top 20 percent of Americans by income.

Obama believes in more of a wealth redistribution model. McCain supports more of a trickle down model: tax breaks to the wealthiest will boost the economy and help everybody.