Nerves are particularly stretched in Maricopa county, which will likely decide which way the state swings in the polls

Pearl Hubbard picked up some yard signs for Kamala Harris at the vice-president’s speech in Phoenix, Arizona, on Thursday afternoon, but wasn’t yet sure whether she’d risk displaying them outside her home in a city that sits in some of the most hotly contested political territory in the country.

“I’m scared to put them up,” Hubbard said. “As I drive … I only saw one place that had a [Harris] sign. Just don’t see them. I think people are scared to put them up.”