US Democratic presidential candidate Hillary Rodham Clinton 美國民主黨總統候選人 希拉里/ 希拉蕊

FILE - In this Nov. 3, 2015 file photo, Democratic presidential candidate Hillary Rodham Clinton speaks in Coralville, Iowa. State and local elections across the country this week produced warnings signs for both Democrats and Republicans as the parties press toward the 2016 presidential contest, now just a year away. (AP Photo/Charlie Neibergall, File) - See more at: http://www.houstonseagle.com/photo/ap/top-news/warnings-signs-for-both-parties-in-state-and-local/pCscMK/#sthash.efRrIpMc.dpuf