The money Republicans get from the NRA is a convenient talking point, but it is misleading when it comes to how Republicans vote on gun control. Marco Rubio is mentioned in a letter to the editor in the Herald-Times today, but the money he took from the NRA is a tiny percentage of his overall campaign spending in 2016.
Rubio raised over $25,000,000 for his Senate campaign.
The NRA gave him $10,000.
That is 0.04% of his total - four one hundredths of one percent of his total.
The meme that the National Rifle Association is "buying" Republican legislators with truckloads of cash is simply false. If Republican legislators are worried about the NRA, they are worried about the NRA's members and how they will vote.