Share to Facebook 4KShare to Twitter Share to Google+ This is a modal window. Seniors switching to Medicare Advantage, study finds Finding a bumper sticker America's Energy Landscape - continuing the conversation America's Energy Landscape - continuing the conversation Obama had credit card declined on date Justices decline to halt gay marriage in SC America's Nuclear Energy Future - Continuing Conversation Obama hails Syria strikes, argues ISIS is not America's fight alone A rapidly aging white population and fast-growing younger minority groups are speeding demographic changes across the nation, hastening a political divide likely to have long-term ramifications.