Donald Trump said Tuesday if Hillary Clinton is able to select federal judges as president there is "nothing you can do" to stop it—before adding, "Although the Second Amendment, people, maybe there is, I don't know."

Watch Trump make the statement at a rally in Wilmington, North Carolina:

It's unclear what exactly Trump meant by saying "maybe there is" something Americans could do to stop Clinton's judicial picks. And while it sounds from Trump's phrasing that he was referring to the Second Amendment, which enshrines the right to keep and bear arms, the Trump campaign seems to believe he was referring to "Second Amendment people," as in those who exercise or defend that right.

In a statement to the press, Trump senior communications advisor Jason Miller suggested the Republican nominee's words referred to the latter interpretation. "It's called the power of unification—2nd Amendment people have amazing spirit and are tremendously unified, which gives them great political power. And this year, they will be voting in record numbers, and it won't be for Hillary Clinton, it will be for Donald Trump," said Miller.

But the Clinton campaign interpreted the seemingly off-the-cuff statement from Trump as a veiled threat. "This is simple," said Clinton campaign manager Robby Mook in a statement to reporters. "What Trump is saying is dangerous. A person seeking to be President of the United States should not suggest violence in any way."