Wisconsin's Democratic Senate primary could be referendum on Biden

Wisconsin's already crowded Democratic Senate primary next August could be a referendum on President Joe Biden.

Wisconsin's next Senate election isn't until Nov. 8, 2022, but already there are 11 candidates vying for the Democratic nomination in a party primary that could prove to be an early referendum on President Joe Biden. Political observers told ABC News that generational changes and other factors at play in the August 2022 primary also have implications for next year's midterm congressional elections. Wisconsin is considered a state that can often swing either Democrat and Republican. In 2020, the state was split 49% for Biden and 49% for Trump, with Biden holding a narrow lead of around 20,000 votes, according to ABC News’ election results. The seat up for grabs is now held by Republican Sen. Ron Johnson, and Democrats hope to flip it as they try to maintain control of the Senate.