Joe Biden has won the state of Wisconsin, a key swing state in the race for the presidency, AP projects.
Why it matters: Biden's flip of the state's 10 electoral votes further narrows President Trump's potential paths to victory — and bodes well for the former vice president's prospects in the outstanding Rust Belt battlegrounds of Michigan and Pennsylvania.
- Trump's narrow 2016 victory in Wisconsin helped pave his path to the White House.
- Biden was leading in the state by 8.4% the day before Election Day, according to FiveThirtyEight's average of polls.
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