This week the GOP candidate beefed up campaign staff, releases a new TV ad in Iowa, and unveils an economic plan that features a flat tax. Is it enough for Rick Perry to climb back up in the polls?
Herman Cain is basking in the Sunday glow of his surprise win Saturday in the Florida straw poll. But he lags in national polls, and his Florida win may draw sharper scrutiny of his positions.
But as the likely GOP nominee, he will face more scrutiny from Democrats.