The red line is when Republicans ended the national assault weapons ban.

Source:
https://www.channel4.com/news/factcheck/factcheck-does-gun-control-work
Also, https://www.instagram.com/p/CeEZJNJu5X2/
Note: In 2004 the Republican Congress refused to renew the assault weapons ban

FactCheck: does gun control work?

States with stricter gun laws have lower firearms deaths - but is one causing the other?

Channel 4 News
@AthenasOwl
This is a great graphic. Where is it from?
@RuthZ @AthenasOwl based on the style, I suspect it's from ft.com maybe https://www.ft.com/content/200a8746-a7db-11e7-ab55-27219df83c97 but I'm not currently a subscriber. Similar but different graphs suggest it's correct. For example, https://www.newsweek.com/us-gun-problem-explain-5-graphs-shootings-1714250
The US’s unique problem with mass shootings — in four charts

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