I wouldn’t characterize Wisconsin as a flip to red. Democrats had control for 8 Presidential elections, but by a pretty slim margin. And it was the other direction for decades before that. Wisconsin’s blue collar more-populated factory towns were largely Democrat, while the rural areas were Republican. The economy tanked, factories long ago closed, minorities in Milwaukee, Racine and Kenosha are overlooked, the education system is in debt up to its eyeballs, then Rep. Scott Walker promised change. So far, not much change except he distanced himself from Trump; a lot of the voters who did vote for Trump are Democrats who are fed up. The Democratic candidates who’ve ran against Walker have had scandals and poor track records. Ryan has been representing that district since 1999. Scott Walker has been Governor since 2011.