Appeals court upholds six-day extension for counting Wisconsin ballots

A federal appeals court on Tuesday upheld a lower court ruling that extended the deadline for counting mail-in ballots in Wisconsin until Nov. 9 as long as they are postmarked by the Nov. 3 election, AP reports.

Why it matters: It's a big win for Democrats that also means that the winner of Wisconsin, a key presidential swing state, may not be known for six days after the election. Republicans are likely to appeal the ruling to the Supreme Court, as the Pennsylvania GOP did after a similar ruling on Monday.

Go deeper: How the Supreme Court could decide the election