...clarified that the 2nd Amendment protected an individual's right to own a firearm for lawful purposes such as self-defense in the home, among other activities, but the entire concept of the 2nd Amendment. Apparently.
http://www.bloomberg.com/politics/articles/2016-05-20/hillary-clinton-believes-pivotal-gun-rights-ruling-was-wrong-adviser-says
"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.
...also...
http://www.factcheck.org/2016/05/trump-distorts-clintons-gun-stance/
Asked about Clintons remarks about the Second Amendment, Clinton campaign spokesman Josh Schwerin confirmed that Clinton was referring to the Heller case. He said 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.
Of course Hillary Clinton does not want to repeal the Second Amendment. Donald Trump is simply peddling falsehoods and conspiracy theories in an attempt to divide the American people and win votes, Schwerin said in an email to us. Along with the vast majority of Americans, Clinton believes there are common sense steps we can take at the federal level to keep guns out of the hands of criminals while respecting the 2nd Amendment. She also believes Heller was wrongly decided in that cities and states should have the power to craft common sense laws to keep their residents safe.