Sanders thinks Clinton campaign is 'getting nervous'

CNNSanders thinks Clinton campaign is 'getting nervous'CNNAltoona, Iowa (CNN) After four months on the campaign trail marked by big crowds, growing support and rising poll numbers, Bernie Sanders is closing the gap in Iowa and around the country as he chases Democratic front-runner Hillary Clinton. And on ...Bernie Sanders: Hillary Clinton Camp 'Getting Nervous'NBCNews.comHillary Clinton's unfavorable rating approaches record territoryDispatch TimesHillary Clinton's favorability among Americans nears 23-year low: GallupNASCAR Ranting and Raving (blog)Washington Postall 260 news articles »