Claiming people are being paid to riot, Republican state senators voted Wednesday to give police new power to arrest anyone who is involved in a peaceful demonstration that may turn bad — even before anything actually happened.

SB1142 expands the state’s racketeering laws, now aimed at organized crime, to also include rioting. And it redefines what constitutes rioting to include actions that result in damage to the property of others.

But the real heart of the legislation is what Democrats say is the guilt by association — and giving the government the right to criminally prosecute and seize the assets of everyone who planned a protest and everyone who participated. And what’s worse, said Sen. Steve Farley, D-Tucson, is that the person who may have broken a window, triggering the claim there was a riot, might actually not be a member of the group but someone from the other side.

Sen. Martin Quezada, D-Phoenix, acknowledged that sometimes what’s planned as a peaceful demonstration can go south.

“When people want to express themselves as a group during a time of turmoil, […]