 Now, to this story, Wisconsin, that's where the Republican convention is. It's one of the most closely contested battleground states. In 2020, President Biden won it by just over 20,000 votes. Only Arizona and Georgia were closer. In 2016, Donald Trump won it by 22,000 votes. It's likely to be close again this year, according to a poll from Marquette University Law School from last month. Likely Wisconsin voters are evenly split on Biden and former President Trump.