Coming Up: House Speaker Nancy Pelosi

She's the woman with immense power to shape President Barack Obama's legislative agenda. House Speaker Nancy Pelosi is our headliner this Sunday morning on "This Week with George Stephanopoulos." Then, the 'This Week' Roundtable -- Former CEO of Hewlett-Packard Carly Fiorina, ABC's George Will, Sam Donaldson, Cokie Roberts, and the New York Times' Paul Krugman -- with analysis on the stimulus package, the banking crisis, the inauguration and Obama's first week in the White House, Secretary...Full Story