Antifa already has. Two years ago, up near Tacoma, some Evergreen State students tried to use quick dry cement on the main north south line.
https://www.infowars.com/flashback-antifa-admitted-train-track-sabotage-to-stop-fracking/
This is when I started considering, seriously, whether Democrats should absolutely be allowed to survive...
Again, Kirk Douglas ... "The Villain" ...