To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Share Embed Share URL Video File Node URL Embed Code <iframe title="MRC TV video player" width="640" height="360" src="https://www.mrctv.org/embed/104550" allowfullscreen></iframe> Responsive Embed Code Embed Code <iframe title="MRC TV video player" width="640" height="360" src="https://www.mrctv.org/embed/104550" allowfullscreen></iframe> GOP presidential front-runner Mitt Romney and seven rivals trying to emerge from the pack criticized President Barack Obama's handling of the economy in a debate in Iowa Thursday night. But they also went after each other.