Sen. Rick Scott (R-Fla.) and Rep. Alexandria Ocasio-Cortez (D-N.Y.) mixed it up on Monday in a series of tweets that touched on gun control, the Green New Deal, sexism and sarcasm.

Scott, the former Florida governor, kicked it off by blasting a sweeping plan to combat gun violence released Monday by presidential candidate Sen. Cory Booker (D-N.J.).

Booker’s proposals include a program that would require people to obtain a license in order to purchase a gun. It would also include a ban on assault weapons and high-capacity magazines.

“The latest terrible idea to come out of the Democrats’ 2020 primary is a federal gun registry,” Scott tweeted.