new york democratic presidential candidate hillary clinton hold 6- percentage-point lead republican rival donald trump accord reuters/ipsos poll new word release friday day formally accept party nomination nov. election nearly 41 percent likely voters favor clinton 35 percent favor trump 25 percent pick accord new july 25-29 online poll 1,043 likely voters overlap democratic national convention philadelphia poll credibility interval percentage point miss mccain slam trump attack dead muslim soldier 's parent fbi employee accuse chinese agent plead guilty prosecutors rio 's olympic air dirty deadly expect presidential track poll reflect slight change word previous survey replace neither/other option give respondents other internal review find word neither time siphon support away one candidate former secretary state clinton deliver upbeat keynote address democratic convention thursday night become first woman accept presidential nomination major party big speech 25-year-old career public eye clinton 68 cast steady leader moment reckon country contrast character describe trump dangerous volatile temperament trump 70-year-old new york businessman former reality tv show host never hold political office respond twitter post late thursday hillary vision borderless world work people power job safety candidates campaign trail friday kick expect hotly contest general election battle separate reuters/ipsos survey provide respondents option choose clinton trump libertarian candidate gary johnson green party candidate jill stein clinton trump tie 37 percentage point alternative party candidates johnson come third percentage point follow stein percentage point accord july 25-29 survey 1,426 likely voters credibility interval percentage point clinton lead trump point democratic confab reuters/ipsos poll