The United States Supreme Court on Monday declined to take up several lawsuits involving guns and the Second Amendment that challenged restrictions on people under the age of 21 purchasing handguns and a law restricting peoples’ ability to receive or process handguns across state lines.

The court, without comment, denied three new petitions, two of which were filed by the National Rifle Association.

The high court has declined multiple times in recent years to wade into the issue of how far the Constitution goes in protecting Americans’ self-defense rights outside of their homes.

The NRA had asked the justices to take up a Texas challenge that questions whether states can impose restrictions on guns that the group says would be “unimaginable” if it were for free speech or privacy rights.