And while the politics of gun control changed dramatically once her husband left the White House, Clinton kept at the issue once she got to the Senate, where she was a reliable vote for gun-safety measures. She supported renewing the assault weapons ban and barring the sale of high-capacity magazines.

“She’s worked on these issues for a really long time—she really comes to this as an advocate for kids and families,” said Neera Tanden, president of Center for American Progress and a longtime Hillary Clinton aide.

When Clinton announced her candidacy for the Senate in February 2000, she pledged “to keep guns out of the hands of criminals and away from children, for closing the gun-show loophole, requiring child safety locks and licensing all new handgun owners.”

She also co-sponsored several bills aimed at closing the so-called “gun show loophole” and voted to renew the assault weapons ban in 2004. These efforts, however, all came up short, and the Bill Clinton-era assault weapons ban expired.