The Wall Street Journal has a somewhat good article about recent gun laws. The article is behind a paywall so I can't link to it. It is worth reading if you have access.

Since Sany Hook, more gun laws have been passed weakening gun control than laws that strengthen gun contorl. Dave Workman is quoted in it. The laws that have passed strengthening gun control have been much stronger laws though. the laws weakining gun control have been more incremental.