Some recent polls show Donald Trump edging out in front of Hillary Clinton in Iowa. Drake University political science professor Rachel Caufield says there seem to be “after effects” of Clinton’s battle with Bernie Sanders.

 

Caufield says the Iowa Caucuses help develop a “vast network” of activists who have strong opinions.

 

A RABA Research poll found Trump leading Clinton by one point in Iowa. On Friday, analyst Nate Silver of the “five-38” blog gave Trump a nearly 62 percent chance of winning Iowa.