Democrat Martin O'Malley gets fired up over the fact that some GOP presidential contenders are railing against the growing income gap between the rich and the poor.

"How ironic since their choices led to it," he told The Des Moines Register in an interview Saturday. "This is their theory, and we tried it for the better part of these last 30 years: Concentrate wealth at the top, take regulation out of the equation and keep wages low. So for them now to say that they're somehow very appalled and concerned about inequality is ironic, to put it most kindly."

"I mean, ask yourself: Why is it that many of those who are running for president in the Republican Party when they were governors fought so hard against any increase in minimum wage?" O'Malley said. "These guys are not on the side of seeing wages go up. In their strange view of how the economy works, they believe the economy works best when you concentrate wealth at the top. All of us are paying for this concentration of wealth, and we're paying for it in lower wages."