Summary: <p>New polls showed President Barack Obama opening up a lead over Republican challenger Mitt Romney, who tried to reshape his message following a damaging videotape from a fundraiser. The Justice Department found that federal agents and prosecutors ignored risks to the public from its "Fast and Furious" operation. And Chicago's first teachers' strike in 25 years ended. David Corn of Mother Jones magazine, Jeanne Cummings of Bloomberg News and Matthew Continetti of The Washington Freebeacon join guest host Susan Page for analysis of the week's top national news stories.</p>
