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Vice President Joe Biden signs his name to the Network Nuns on the Bus official vehicle on Sept. 17, 2014, after speaking at the kick-off rally in front of the State Capitol in Des Moines, Iowa. Standing behind him is Social Service Sr. Simone Campbell (in red shoes). (GSR file photo/Courtesy of NETWORK)
Vice President Joe Biden signs his name to the Network Nuns on the Bus official vehicle on Sept. 17, 2014, after speaking at the kick-off rally in front of the State Capitol in Des Moines, Iowa. Standing behind him is Social Service Sr. Simone Campbell.