Former Vice President Joe Biden is challenging President Donald Trump.

After a chaotic series of emergency orders and legal challenges, Wisconsin’s election is set to take place on Tuesday against the backdrop of the coronavirus crisis.

Wisconsin's Democratic governor suspends in-person voting for Tuesday's election over coronavirus concerns, escalating tensions with the GOP.

As the novel coronavirus shutters nearly every aspect of American society, 10 mayors in Wisconsin are pushing for the pandemic to shut down one more: in-person voting.

Despite Centers for Disease Control and Prevention guidance, both campaigns for Joe Biden and President Donald Trump haven't called on Wisconsin to delay its elections.

They're ickering over how to provide voters safe and secure access to a ballot.

Democrats are zeroing in on health care as one of the few issues that might resonate among Americans who have largely shelved election year politics as they focus on protecting their families from the spreading coronavirus

White House candidates aren't usually bashful about asking for money

The novel coronavirus pandemic has thrust the 2020 campaign into uncharted territory, forcing election officials to upend the primary calendar or forge ahead.

The novel coronavirus outbreak has shown no signs of slowing down, and the 2020 presidential candidates have had to find unique ways to compete and connect to voters.

With more than a dozen states backloading the election calendar due to the novel coronavirus, Wisconsin stands as an outlier, instead determined to forge ahead.

The coronavirus pandemic has impacted all aspects of American life presenting President Trump an unprecedented election year challenge.

As several states reschedule their presidential primaries, others move forward as planned, promoting methods like vote by mail as an alternative to in person voting.

The coronavirus has grounded the 2020 presidential race — but not ended it.

The coronavirus has disrupted American life, and the campaign is no exception.

View primary election results from March 17, a crucial day in the 2020 presidential campaign.

Amid the coronavirus pandemic, three states are holding elections on Tuesday as a Democratic race that was thought to be all but over enters an unprecedented phrase.

Voting will happen in Illinois and Ohio despite the coronavirus outbreak.

One week after Super Tuesday, voters in six additional states will head to the polls amid the coronavirus crisis that has now reached 36 states.

Biden won key demographics: African American, suburban and working-class voters.

Montana Gov. Steve Bullock says he'll run for the U.S. Senate

If all former felons register to vote in Florida, they could make up 10% of the voting population in the state.

Sen. Bernie Sanders is projected to win the California Democratic primary with 88% of the vote reporting.

Georgia's State Election Board voted to punish election officials in one county for their decision not to use the state's new voting machines for the presidential primary

Sen. Chuck Schumer explained that the bill would “drain the deep, dark swamp made so much the worse in Donald Trump’s administration.”

It's the first time voters will face what is essentially a two-person Democratic field.

Joe Biden heads into the latest contests as the front runner with more endorsements and delegates as Sen. Bernie Sanders looks for a win.

Montana Gov. Steve Bullock announced a bid for U.S. Senate Monday, putting the state in play for Democrats in 2020.

The four early nominating contests might be over, but this week Democrats face a significant turning point in the race.

Former Vice President Joe Biden and Sen. Bernie Sanders were going back and forth on Twitter Thursday over cuts to Social Security and who could defeat President Trump.

What is Super Tuesday and why is it important? Here's what you need to know.

Democrats' efforts to engage young voters this year is being made more difficult in some states that have made it harder for college students to register and vote

Michael Bloomberg dropped out of the race and endorsed Joe Biden after big victories Super Tuesday. An aide says Elizabeth Warren is assessing her "path forward."

2020 Super Tuesday exit poll analysis.

Over a third of pledged delegates will be allocated to the top candidates after 14 states and American Samoa went to the polls on the single biggest day of voting in the Democratic primary race.

“Nightline” co-anchor Juju Chang discusses the results with ABC News political experts MaryAlice Parks and former New Jersey Gov. Chris Christie.

Democratic contenders Joe Biden, former New York City Mayor Michael Bloomberg and Sen. Bernie Sanders’ campaigns react to the results of Super Tuesday.

Millie and Myrtle have gone to polls each election year since the 1930s. They're only two of the voters ABC News’ Will Ganss is introducing us to from across the country on Super Tuesday.

Joe Biden makes a stunning comeback with victories throughout the Southern states. ABC News’ Marci Gonzalez reports.

Bernie Sanders’ big night became Joe Biden’s.

Voters will go to the polls in 15 contests and four major candidates are still in the race with frontrunners Bernie Sanders and Joe Biden campaigning until the last minute.

Top officials across the U.S. government on Monday issued an unusual joint warning to 'foreign actors' to stay out of the Super Tuesday primaries.

Pete Buttigieg was once a long-shot in a crowded field of candidates, but became a household name during the Democratic primary.

ABC News correspondents and contributors break down candidates’ chances in South Carolina and what it means for Super Tuesday.

View Nevada caucus election results for Democratic and Republican candidates, part of the 2020 Presidential Campaign

As South Carolina heads to the polls, President Donald Trump holds a rally and Democratic candidates weigh in on his response to the outbreak.

Sen. Bernie Sanders' convincing victory in the Nevada caucuses has made him the undisputed front-runner for the Democratic presidential nomination

Over 70,000 take advantage of new voting rules in Nevada ahead of the caucuses, many of those voters working in the hospitality industry.

Tennessee lawmakers are trying to amend the state's legally contentious voter-registration restrictions that are currently blocked from being enforced during the 2020 elections

Progressive group, Way to Win, is investing $50 million in 2020, with new investments in diverse Nevada ahead of caucuses.