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The National Rifle Association (NRA) holds its Annual Meetings and Exhibits.
It attracts over 500 exhibitors of weapons, knives, hunting gears, shooting accessories and wildlife arts. Every major firearms company in the US takes part in the meeting.
Visitors can attend educational seminars and special events, which are organized for families.
The NRA advocates a liberal interpretation of the right to bear arms as laid out in the Second Amendment to the American Constitution. It promotes the ownership of firearms and tries to protect hunting and self-defense in the US.
President Donald Trump is set to speak at this years convention. During his campaign he made it clear that he supported the right to own a gun and didn't believe in 'gun free zones', since becoming President he has also been working on getting rid of any gun restrictions. He will be the first President in 34 years to speak at the convention.