A new poll finds independent Greg Orman has a significant lead against Republican Pat Roberts . The survey also gives Democratic incumbent Kay Hagan a four - point lead in the tight N.C. race . And in the neck-in-neck Iowa Senate contest , NBC News/Marist polling reports that the race is still a statistical dead heat , with Ernst leading by two points but within the 3.5 percentage point margin of error . And in Iowa , polling from the same survey puts the Iowa Senate race at a dead heat .
A new poll finds independent Greg Orman has a significant lead against Republican Pat Roberts . The survey also gives Democratic incumbent Kay Hagan a four - point lead in the tight N.C. race . And in Iowa , polling from the same survey puts the Iowa Senate race at a dead heat .