Having trouble keeping up with the electoral battle in swing states? We don’t blame you. Each state has slightly different ballot counting rules, recount provisions, and lawsuits over everything from mail-in voting deadlines to how close observers can stand to election workers. Here’s a snapshot of the state of affairs on disputed parts of the electoral map.

President Donald Trump reprised his 2016 wins in three key battleground states early Wednesday. The president led by more than 8 percentage points in Ohio and Iowa, and he held a nearly 4 point edge in Florida. Republican candidates usually must win those states to have a chance at the presidency.

Democrats failed to wrest control of the U.S. Senate from Republicans as key incumbents held onto their seats on election night. Sen. Joni Ernst, R-Iowa, was projected to defeat Democrat Theresa Greenfield. In Georgia, with 88 percent of precincts reporting, Sen. David Perdue led Democrat Jon Ossoff by almost 8 points. In a special election in Georgia, Sen. Kelly Loeffler and Democrat Raphael Warnock seemed headed for a runoff. Elsewhere, GOP senators maintained leads in Montana, Maine, and North Carolina with at least 70 percent of precincts reporting in each state.

Senate Majority Leader Mitch McConnell, R-Ky., won his election against Democratic challenger Amy McGrath in a race that Democrats hoped might be competitive. Going into election night, Republicans held a 53-47 edge in the upper chamber of Congress, but Democrats hoped to flip seven or eight of those seats tonight. They succeeded in Colorado, where former Gov. John Hickenlooper ousted incumbent Republican Sen. Cory Gardner. Democrats also hope to pick up seats in the swing states of Iowa, Maine, North Carolina, and Arizona.

Because of the pandemic, many Americans turned to mail-in, absentee, and early voting for Tuesday’s election. How that could affect the final result varies by state. Election officials in several states will have already counted millions of early votes by Tuesday night. Results could come in earlier than usual in the swing states of Florida, Georgia, Iowa, North Carolina, and Ohio. Other states, including the pivotal Rust Belt states of Wisconsin, Michigan, and Pennsylvania, will accept ballots and count them for days after the election, likely delaying their final tally.

President Donald Trump and Joe Biden expect Pennsylvania’s 20 electoral votes to play a pivotal role in Tuesday’s election. Biden focused almost exclusively on the state on Monday, attending three events ending with a drive-in rally at Pittsburgh before making a quick stop in Cleveland. By the end of Monday, Trump attended five rallies in four states: two in Michigan and one each in Pennsylvania, North Carolina, and Wisconsin. The president has maintained a breakneck pace, covering 14 rallies in three days this past weekend.

More than 9 million Texans have already cast their votes in the 2020 presidential election as of Friday afternoon. That’s more than half of the state’s registered voters. In 2016, 8.9 million people voted in the state, behind only California and Florida. The staggering volume of mail-in and early in-person voting reflects a similar trend across the United States.