Warren Slides in New Hampshire Poll: Campaign Update

(Bloomberg) -- Joe Biden mocked Pete Buttigieg in an ad that contrasts the former vice president’s long experience in government to the more modest accomplishments of the 38-year-old former mayor of South Bend, Indiana.“We’re electing a president. What you’ve done matters,” the ad says.The spot compares Biden’s work helping to pass the Affordable Care Act to Buttigieg’s implementation of decorative lights under South Bend’s bridges. It also says th