Challenges await President back home

President Barack Obama is finishing his trip in Asia and will soon return to unrest in the Senate over health care reform, pressures from all sides to decide whether or not to send more troops to Afghanistan and rising unemployment. All that and, to top it off ? his job approval ratings are slipping, according to a new Quinnipiac survey. For an inside look at how Obama might be dealing with all of this, we talk with David Plouffe, president Obama’s campaign manager last year and the author of a new book, ?The Audacity to Win: The Inside Story and Lessons of Barack Obama’s Historic Victory.?