WAUSAU, Wis. — Donald Trump took his campaign Saturday to central and western Wisconsin, the parts of the state where he is most popular. On a day that alternated between sunshine and snow, Trump and opening act Sarah Palin filled the Central Wisconsin Convention & Expo Center just outside Wausau. The line to go through security and enter the rally was long, and blessedly indoors as the temperature outside fell below freezing. Below, a look at the experience of trying to get into a Trump rally. (When this video was taken, the room was already about half full, and some would be turned away.)