Perry Promises Flat Tax Plan as Romney Produces Video Attack Ad

Texas Governor Rick Perry says he will soon offer a flat-tax proposal, his latest bid to draw distinctions with Mitt Romney in a Republican presidential race that is becoming increasingly contentious.

Romney, the former Massachusetts governor, made clear that he views Perry as the biggest threat to his quest for the party’s nomination by releasing a video yesterday that mocks his debate performances, including one this week in Las Vegas.