Just to be sure, though, we asked a couple of campaign law experts how much Mr. West’s filings meant.

“Very little,” said Paul S. Ryan, vice president of policy and litigation at Common Cause.

Candidates are not required to register with the F.E.C. unless they have raised or spent more than $5,000, but “there is nothing that prohibits someone who hasn’t raised or spent that amount of money from filing,” Mr. Ryan said. “That’s why you see hundreds and hundreds and hundreds of not serious candidates,...

“The big issue we’ve seen is poll workers saying, ‘We don’t want to work this election because the governor isn’t requiring masks at polling locations,’” said Anthony Gutierrez, the executive director of Common Cause Texas, another voting rights group.

“If things don’t change drastically, we’re going to have huge problems in November,” Anthony Gutierrez, the executive director of the good-government group Common Cause Texas.

Heather Ferguson, executive director of Common Cause New Mexico, said the problems seen in the primary are reflective of a long history of racism.

“Democracy has been failing in Indigenous communities for such a long time, and this is yet another example of how they have been disenfranchised and because of how all of these other systems are not in place, it continues to cause trauma and harm to these communities,” she said.

The blizzard of litigation — more suits have been pressed by voting rights advocates like Common Cause and the Brennan Center for Justice, and conservative groups like True the Vote and the Honest Elections Project — reflects the high stakes in 2020. Having seen the 2016 presidential race defined by harrowingly close margins in swing states, strategists are scrambling for the advantages conferred by even minor clauses in election rules. ...

Voting rights advocates note that some states vote almost entirely by mail with...

Lines were short all day in Louisville, though, with reporters on site noting the process appeared to be running mostly smoothly. “I’m really happy people didn’t have that much trouble,” Richard Beliles, the chairman of the board of Common Cause Kentucky who was in Louisville observing the polls, said. “The only problem was cars [coming in].”

Sarah Goff, Deputy Director at Common Cause New York, said the primary election process has moved “remarkably smoothly” so far, given the challenges, though people may have to wait two to three weeks to know Tuesday's official results.

“So we just ask voters and candidates for patience,” Goff said. “And it’s more important that the local boards of elections take the time they need to get the count right and make sure every vote is counted.”

“If we have to conduct our elections by mail again there are a lot of glitches that clearly need to be addressed, and a lot more investment needs to be made in voter education,” said Joanne Antoine, the executive director of Common Cause Maryland.

And activists on the ground noted multiple issues at the state and local levels, arguing that voters were unable to find concrete information.

Aunna Dennis, the executive director of Common Cause Georgia which is the state chapter of a nonpartisan watchdog group focused on voting rights, says that multiple polling locations moved within the 48 hours before the election with little warning and didn't provide proper signage to indicate the changes in locations for voters. And when machines stopped working, some locations only had...

The virus “has had a grave impact, a real dent, in how we’re accessing the ballot,” said Aunna Dennis, the Georgia executive director for Common Cause, a nonpartisan grass-roots organization focused on voting rights.

She said the simple question of ballot access should take precedence over any horse-race predictions. “The system is broken here in Georgia,” she said.