Everything is on the Line- Man in charge of PA election

Wow. Listen to the man in charge of Pennsylvania's Elections. He says that EVERYTHING is on the line in this election. The very foundation of our country. They are in a state of sheer panic.
If everything is on the line if Trump wins, won't they attempt to cheat somehow?

"You had to move your family out of your house for safety? Yes, They had to to relocate for a period and we had security around the clock for many months. Given all the threats that you faced personally, I've gotta ask why you would agree to take this job. Well, everything is on the line. Our entire system of government our country as it was founded, is on the line."