Cain is a member of the Texas House of Representatives for House District 128, which covers an area east of Houston, where the debate was held.
He is a member of the newly formed Texas Freedom Caucus and has been outspoken against O’Rourke’s proposed ban and mandatory buy-back.
Earlier this month, he wrote on Twitter, addressing O’Rourke, “I’ll give you my gun when you pry it from my cold dead hands.”
O’Rourke has been particularly outspoken about banning military-style assault weapons and instituting a mandatory buy-back scheme since a man in an El Paso Walmart last month killed 22 people and injured dozens more. The suspect is thought to have used an AK-style rifle. El Paso is O’Rourke’s hometown.
Most candidates in the Democratic debate on Thursday night made statements or commitments about regulating guns.