In light of last week's ruling — which said that Americans have a right to carry a gun outside the home — lower courts should take another look at several cases that had been awaiting action by the high court, the court said. Those cases include ones about high-capacity magazines, an assault weapons ban and a state law that limits who can carry a gun outside the home.

The justices, in a 6-3 decision, last week struck down a New York law that required people to show "proper cause," a specific need to carry a gun, if they wanted to carry a gun in public. Half a dozen states have similar laws that were called into question by the ruling.

In the New York case, the court's conservative majority gave lower courts new guidance about how to evaluate gun restrictions. The justices rejected a two-step approach appeals courts had previously used as having one step too many. They said courts assessing modern firearms regulations should just ask whether they are "consistent with the Second Amendment's text and historical understanding."