Feb 27, 2017:

In Arizona, Republican Governor Doug Doucey and Arizona Speaker of the House J.D. Mesnard (Republican-Chandler) declared SB 1142 "dead", stating concerns about limiting the rights of free-speech.

Mesnard said he alone made the decision to not let the bill advance (with no input from Doucey), at least in part based on the volume of phone calls and messages voicing concerns over the bill.

Rioting is already illegal under Arizona law, but SB 1142 would have expanded racketeering laws to include rioting. It would have allowed protest organizers to be prosecuted if someone else were involved in rioting — even if that individual were not part of the organizing group. The measure also could let law enforcement prosecute organizers for planning an event that could result in rioting.

The bill was introduced by State Senator Sonny Borrelli (Republican-Lake Havasu). All 17 Arizona Republican state senators voted for the bill.

Source:

Wingett Sanchez, Yvonne; Pitzl, Mary Jo. (February 27, 2017). "Arizona House Speaker declares controversial 'protest' bill dead". The Arizona Republic. Retrieved 2017-03-08.

Feb 24, 2017:

Republican lawmakers in many U.S. states are pushing legislation aimed at curbing mass protests. The states are Arizona, Colorado, Florida, Georgia, Iowa, Indiana, Michigan, Minnesota, Missouri, Mississippi, North Carolina, North Dakota, Oklahoma, Oregon, South Dakota, Tennessee, Virginia, and Washington.

Although no legislation has yet been passed into law, some of the proposed legislation would increase punishments for blocking highways, ban the use of masks during protests, make drivers who strike protesters with their cars exempt from legal action, and seize the assets of people.

Some supporters of the legislation say it's necessary to help combat "paid" or "professional" protesters, while others say it's necessary for public safety.

Source:

Ingraham, Christopher. (February 24, 2017). "Republican lawmakers introduce bills to curb protesting in at least 18 states". The Washington Post. Retrieved 2017-03-08.

Here's How Republicans Want to Crack Down on Large Protests | Time