The political season has barely begun, and yet we already know that class warfare will be President Obama's key issue in the 2012 general election. It's even reared its ugly head in the Republican primaries, with the candidates trying to paint front-runner Mitt Romney as a cold-hearted capitalist and Rick Santorum proposing targeted tax breaks for the "working class" manufacturing sector.

But none in the GOP can compare with the progressive intelligentsia's obsession with tax increases on the rich to raise revenues and achieve social justice. In a New York Times op-ed last August, Berkshire Hathaway CEO Warren Buffett famously asked Congress to "stop coddling the super-rich," complaining that his effective tax rate was half that of the other people in his office. He then instructed Washington to raise tax rates on millionaires and billionaires like him and retain the employee payroll tax cut on those "who need every break they can get."

Waving Mr. Buffett's op-ed for all to see, Mr. Obama wasted no time in proposing a surtax on millionaires called the "Buffett Rule." Putting aside all the oohing and ahhing over Mr. Buffett's selflessness, his effective tax rate on his true income would hardly budge if this "Buffett Rule" were applied. What's worse, raising the highest tax rates would most likely worsen the budget deficit and lead to a further weakening of the economy. Everyone would suffer.