Secret Service agents generally don't talk publicly about their work, for obvious reasons. But privately, they've been grumbling.
"I think there is a lot of frustration," says J.J. Hensley, a novelist who used to work for the Secret Service. He's still in touch with colleagues, and says it's been a tough campaign season for them.
"Agents are already worrying about guns and knives and bombs," Hensley says. "Now they have to worry about COVID-19."