new york democratic presidential nominee hillary clinton 6-percentage-point lead republican rival donald trump accord reuters/ipsos track poll release tuesday clinton support range 41 percent 44 percent since late july 41 percent aug. 11-15 online poll trump support experience wide shift range 33 percent 39 percent campaign endure controversies distractions recent weeks favor 35 percent likely voters accord recent poll trump cause divisions republican party strong anti-immigrant anti-muslim rhetoric face criticism party early month days-long feud parent muslim american army captain kill iraq last week 70 republicans include former members congress republican national committee staff write letter call rnc stop help trump whose action say divisive dangerous number likely voters pick neither clinton trump poll nearly 24 percent point 2012 president barack obama ahead republican nominee mitt romney nearly margin favor 46 percent likely voters romney 41 percent 13 percent pick neither candidate obama romney swap lead poll several time summer early fall president take hold lead late october separate reuters/ipsos poll give respondents option choose clinton trump libertarian candidate gary johnson green party candidate jill stein clinton also lead trump percentage point alternative party candidates johnson come third percentage point stein percentage point aug. 11-15 poll survey sample 1,132 1,131 likely voters respectively credibility interval percentage point clinton lead trump six point late reuters/ipsos poll