Ahead of potential civil unrest due to Tuesday’s presidential election, the National Guard is on standby as a precaution in several states, including Washington state and Oregon, where hundreds of ballots were damaged or destroyed after at least three ballot drop boxes were recently set on fire,

Purely a precautionary measure' in response to nationwide warnings regarding threats to election infrastructure.

A climate of violence hangs over the US elections following recent attacks on ballot boxes and Trump’s ongoing incitement against political opponents and the press.

Pennsylvania is one of 10 states with National Guard troops on “standby” for election support, the governor’s office confirms.