Democratic presidential front-runner Hillary Clinton was mocked Friday for tweeting a graphic that didn’t appear quite right. 

The former secretary of State’s campaign tried to illustrate the support for background checks for gun sales by using a Venn diagram. But instead of showing how two groups overlap, as Venn diagrams typically do, it simply showed two circles: one for the 90 percent of Americans who support background checks, and one for the 83 percent of gun owners who do.

Dear Congress,

Let’s get this done.

Thanks,

The vast majority of Americans pic.twitter.com/23ND36tFFm

— Hillary Clinton (@HillaryClinton) May 20, 2016

Twitter users were quick to mock her misuse of the Venn diagram. 

@HillaryClinton pic.twitter.com/e1MWUxOQwW

— Travis (@travislylesnews) May 20, 2016

.@hillaryclinton pic.twitter.com/daWooyCzOQ

— Michael Deppisch (@deppisch) May 20, 2016

https://t.co/TxUQWGz67f pic.twitter.com/LyO0mkSxxU

— Rebecca Sinderbrand (@sinderbrand) May 20, 2016

“Let’s do a Venn diagram! It’s this nifty thing I saw on Facebook. It just means you write things inside circles.” https://t.co/shKLKuTjP9

— Jesse Walker (@notjessewalker) May 20, 2016