Hillary Clinton believes a 2008 Supreme Court ruling that is the linchpin of an individual’s right to own a gun was “wrongly decided,” her policy adviser told Bloomberg Politics on Friday.

“Clinton believes Heller was wrongly decided in that cities and states should have the power to craft common sense laws to keep their residents safe, like safe storage laws to prevent toddlers from accessing guns,” Maya Harris, a policy adviser to Clinton, said in an e-mailed statement. “In overturning Washington D.C.’s safe storage law, Clinton worries that Heller may open the door to overturning thoughtful, common sense safety measures in the future.”

The stance by Clinton, the all-but-certain Democratic presidential nominee, carries potentially profound implications for the future of gun rights in the U.S.

In striking down a longstanding handgun ban in the District of Columbia, the D.C. v. Heller ruling marked the first time the Supreme Court held that the Second Amendment protected an individual’s right to own a firearm for lawful purposes such as self-defense in the home.