When voters in Jefferson County, Colorado, cast their ballots in the Nov. 8 midterm election, they will see security guards stationed outside the busiest polling centers.

At an election office in Flagstaff, Arizona, voters will encounter bulletproof glass and need to press a buzzer to enter. In Tallahassee, Florida, election workers will count ballots in a building that has been newly toughened with walls made of the super-strong fiber Kevlar.

Spurred by a deluge of threats and intimidating behavior by conspiracy theorists and others upset over former President Donald Trump's 2020 election defeat, some election officials across the United States are fortifying their operations as they ramp up for another divisive election.

A Reuters survey of 30 election offices found that 15 have enhanced security in various ways, from installing panic buttons to hiring extra security guards to holding active-shooter and de-escalation training.

Reuters focused on offices in battleground states and offices that had openly expressed a need for security improvements, for example in congressional testimony. While the survey does not speak to how widespread such moves are, it does show how election officials are responding to threats in parts of the country where the election will likely be decided.Election officials around the country said they were coordinating more closely with local law enforcement to respond quickly to disturbances. Many have also trained workers in de-escalating conflicts and evading active shooters.