Barry C. Burden, University of Wisconsin-Madison professor of political science and director of the university’s Elections Research Center, said there is not sufficiently reliable data to conclude which candidate got more votes among young people — or any other age group – in Wisconsin.
“Exit polls such as the one Gagnon references are the most immediate source for understanding how groups voted in the election, so they are widely used to explore voting patterns,” Burden said in an email. “But exit polls are known to have systematic errors, especially for estimating vote choices in subgroups such as 18-24 year olds, who make up a small share of the sample and can be a difficult group to survey. There is also a margin of error to consider, as in any other survey. As a result, it is not reasonable to conclude at this point that Trump won over young voters in Wisconsin.”