FROM CNN's Jack Cafferty: It's been about two weeks since Former Minnesota Governor Tim Pawlenty formally entered the Republican presidential race. So far, he's talked bluntly and forcefully, but not very specifically, about issues like gradually raising the retirement age for Social Security, overhauling Medicare, and phasing out ethanol subsidies. But yesterday, in what's being … Continue reading Tim Pawlenty wants only two income tax brackets, 10% and 25%. Good idea?