Student Chris Grady was in Marjory Stoneman Douglas High School the day a gunman killed 17 people in Parkland, Florida. On Saturday, less than two months later, Grady and his classmates will rally in Washington, D.C., to demand change to the nation's gun laws.

The March 24 rally in Washington, D.C., called March for Our Lives, has more than 800 sister marches around the world in a movement that is asking that public safety be considered an issue that transcends politics.

"People are trying to spin what we’re doing, saying we’re out to take away their Second Amendment rights," said Grady, 19. "Our main goal is to save kids' lives, people's lives. This is a public safety issue that takes place in concerts, churches, airports, not just schools."

As they march and organize, the students are up against the National Rifle Association, a powerful, well-funded organization that has many decades of experience repelling proposed changes to gun laws.

But this time may be different, experts say, because of the mobilized outrage and mounting pressure on the NRA.

"It is only in moments like this when the country is roused that NRA activism can be overwhelmed, but it doesn't happen often," said Dr. Robert Spitzer, a professor at SUNY Cortland who has written extensively about gun policy.

The NRA was founded in 1871 by former Union soldiers with the intention of promoting accurate marksmanship. In 1934, the group founded a legislative division due to growing debates over gun laws. But it wasn't until 1975 that the NRA founded its lobby division, the Institute for Legislative Action, to be a direct influence on policy.

In 2016, the NRA's political arm took in $366 million, according to a the group's Internal Revenue Service filing obtained by Mother Jones[1]. It was a fundraising record for the group.

The NRA is America's most powerful gun lobby, funding politicians who will vote to maintain loose gun measures on its behalf. And beyond financial power, the NRA has strengthened its base by ingraining the notion that guns represent American values.

The NRA says it supports the Constitution and gun rights for all Americans. But it only truly represents its base members -- nearly 5 million, according to the NRA’s website, on top of another 10 million who identify with the the group, Spitzer said.  

Spitzer said the NRA maintains power through a small, highly motivated minority that wins over a "larger, but relatively apathetic majority."

"There is a general sense among some gun owners that the NRA champions their values -- not just gun ownership, but how they view the world," he said. 

The organization has been thrown in a harsh spotlight after the the school shooting in Parkland, Florida. Nikolas Cruz was charged with killing 17 people at Marjory Stoneman Douglas High School on Feb. 14, using a semiautomatic rifle. The NRA was silent for a week after the shooting before going on the offensive; NRA leader Wayne LaPierre called for President Donald

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