Amid massive social unrest and the continuing coronavirus pandemic, voters in Idaho, Indiana, Iowa, Maryland, Montana, Pennsylvania, New Mexico, Rhode Island, South Dakota, and Washington D.C. will cast their ballots on Tuesday. Americans in nine states and Washington D.C. will cast their ballots in primary elections on Tuesday, despite massive social unrest and an ongoing global pandemic that have upended voting like nothing else in recent history. From Maryland to Montana, voters are being asked to navigate curfews, health concerns, and a sharp increase in mail balloting as they vote in primary elections for federal, state, and local offices. Four states were originally scheduled to vote in April but delayed their elections because of the coronavirus outbreak. Pennsylvania has absorbed much of the spotlight, given its swing state status, but with November\u2019s presidential match-up between President Donald Trump and challenger Joe Biden all but official, Tuesday\u2019s state and local races are most likely to have an impact\u2014especially as the results of those races could help determine the government\u2019s response to the ongoing crises. Other states voting Tuesday are: Idaho, Indiana, New Mexico, Rhode Island and South Dakota. Voters in Iowa, which selected its presidential nominees earlier in the year, will also cast their votes in down-ballot races. Residents of the District of Columbia will also vote on Tuesday. Many voters have opted to cast their ballots by mail due to the ongoing coronavirus pandemic that has killed more than 105,000 Americans, but many others will still vote in-person. RELATED: I\u2019m a Republican. Everyone \u2014 Including My Party \u2014 Should Embrace Voting By Mail. In anticipation of Tuesday, many states have implemented safety measures to try and protect individuals from contracting or spreading the virus. Pennsylvania implemented social distancing and disinfecting guidelines for polling places and ordered 6,000 infection-protection kits for voting sites, which include supplies such as masks, gloves, hand sanitizer and other cleaning sanitizers. \u201cWe think we\u2019re prepared,\u201d Pennsylvania Democratic Party Chairwoman Nancy Patton Mills said. \u201cThank goodness we have the opportunity of working this out in the primary because we don\u2019t know where we\u2019ll be with the pandemic in November.\u201d\u00a0 Despite these preparations, reports emerged on Tuesday morning of issues at polling sites. In Upper Darby, Pennsylvania, for example, Colleen Kennedy, an activist volunteering at the polls for the first time, said her voting site did not have cleaning supplies or masks for voters or poll workers. \u201cWe definitely did not have enough \u201d she told the Philadelphia Inquirer. In Baltimore County, Maryland, a reporter pointed out that the conditions were not particularly sanitary, as \u201cvoters have to touch 4 doors to enter and exit and they are not being wiped down.\u201d The Inquirer also reported that voting machines were not ready to go at some sites around Philadelphia, while election supplies were missing from others. Local election officials have also had to contend with the ongoing protests over the police killing of Minneapolis resident George Floyd, which continued across the region on Monday evening. Election officials said mail-in ballots were not affected during the protests, but acknowledged the protests had raised new challenges, such as how to protect polling places without using a police presence that intimidates voters. As the Inquirer reported, they also knew that the ongoing unrest might cause poll workers to drop out and could make it more difficult for voters to reach the polls, due to street closures and disruptions to public transit. In Washington D.C., voters will head to the polls just one day after police and U.S. military fired flash-bang shells, tear gas and rubber bullets into a crowd of peaceful protesters, so that President Trump could get a photo op outside St. Jonathan\u2019s Episcopal Church in Washington, D.C. RELATED: How Trump Is Using the Protests \u2014 and the Language of War \u2014 to Campaign for Re-Election In response to the protests, Mayor Muriel Bowser enacted a curfew that begins at 7 p.m. on Tuesday, even as voting centers remain open until 8 p.m. Voting has been deemed essential, and city officials say voters will not be subject to arrest if they cast ballots during the curfew. It's much the same in Philadelphia, where officials have promised that voters would not be arrested should their city's 6 p.m. curfew be extended for a fourth consecutive night. https:\/\/twitter.com\/Vote4DC\/status\/1267638410916892673?s20 Still, others have raised concerns that prospective voters could be arrested while exercising their constitutional right to vote. Police across the nation, after all, have repeatedly provoked peaceful protesters and non-protesters alike over the past week. "We are particularly concerned about how the protests, and particularly the response to the protests, are going to affect voting," Suzanne Almeida, the interim executive director of Common Cause Pennsylvania, told Politico. "Asking people to walk through, or near, or around police or National Guard who are armed can feel dangerous. Particularly voters of color, but other voters as well." Voters in many other cities could also run into problems. The Baltimore board of elections announced that it shut down a ballot drop box outside the board\u2019s office on Monday \u201cdue to safety concerns in the area,\u201d and instead directed voters to 14 other drop boxes throughout the city. Other voters also found that their polling sites had been moved without notice. https:\/\/twitter.com\/TheSkorpion\/status\/1267857868117741569?s20 https:\/\/twitter.com\/KarlaValley\/status\/1267858645230014466?s20 Collectively, the protests and the pandemic have turned the traditional election day norms upside down. \u201cWe\u2019ve run out of ways to describe how unusual this situation is,\u201d David Thornburgh, president and CEO of the nonpartisan good-government advocacy group Committee of Seventy told Politico. \u201cWe are in unique times and voting is a unique challenge for people,\u201d said Josh Schwerin, chief strategist for the pro-Democrat super PAC Priorities USA. He said that his organization and others will be watching closely on Tuesday \u201cto see how well it works, where issues are, and where obstacles have been put in place.\u201d Adding to the tension of the moment is that Tuesday\u2019s primary elections could play a role in any future coronavirus legislation or policing reform. As former President Barack Obama said on Monday, local elections are critical to achieving such reforms. \u201cThe elected officials who matter most in reforming police departments and the criminal justice system work at the state and local levels,\u201d Obama wrote in a Medium post. \u201cIt\u2019s mayors and county executives that appoint most police chiefs and negotiate collective bargaining agreements with police unions. It\u2019s district attorneys and state\u2019s attorneys that decide whether or not to investigate and ultimately charge those involved in police misconduct.\u201d Obama also pointed out that the turnout for these sorts of races was usually \u201cpitifully low,\u201d which he said \u201cmakes no sense given the direct impact these offices have on social justice issues, not to mention the fact that who wins and who loses those seats is often determined by just a few thousand, or even a few hundred, votes.\u201d Obama called on those seeking change to not only protest, but to vote as well. \u201cThe choice isn\u2019t between protest and politics. We have to do both. We have to mobilize to raise awareness, and we have to organize and cast our ballots to make sure that we elect candidates who will act on reform,\u201d Obama said. Obama\u2019s call was echoed by Terrence Floyd, George Floyd\u2019s brother. During a Monday afternoon speech in Minneapolis, Floyd pleaded with protesters to stay non-violent and encouraged them to vote as well. https:\/\/www.youtube.com\/watch?vyxHXhCOIiK4&featureemb_title "Let's stop thinking that our voice don't matter and vote \u2014 not just the president, vote for the preliminaries," Floyd said to a chorus of applause. "Vote for everybody. Educate yourself, educate yourself. Don't wait for somebody else to tell you who's who; educate yourself and know who you're voting for. And that's how we're going to hit them.\u201d The Associated Press contributed to this report.