Donald Trump and Mike Pence "support the Second Amendment, support strong due process and don't want gun control," an NRA lobbyist said.
"Federal support for research that could help states and communities reduce firearm crime, violence, and suicide remains very limited," RAND researchers said.
The president suggested taking guns away from mentally ill people without due process.
Hillsborough County includes cities such as Tampa.
A sign reading "Shoot a .50 Caliber Only $29" was changed by a group advocating for changes in gun laws.
"I will not be able to protect you the way an able-bodied teacher will," the teacher told her students. "...Don't worry about me."
New polls show rising support for gun safety measures in the wake of recent mass shootings.
The president's latest guns stance means he has no chance of re-election in 2020, said Fox News host Laura Ingraham.
Police identified the man taken into custody on Wednesday after allegedly firing a handgun in a Georgia high school as 53-year-old social studies teacher Jesse Randal Davidson.
Police responded to Dalton High School after receiving reports of shots fired around noon. Investigators discovered a teacher barricaded inside a classroom.
Gun control has been widely debated since the Florida shooting.
A police affidavit says that three students heard Brennen Michael Shenk make the threat while standing in the school lunch line.
Gun control advocates may see this as war of attrition, but businesses cutting ties with the NRA might not be doing so to take a moral stand—it's just good business.
Many social issues divide Americans by age. Gun control is not one of them.
The gun rights group has its own lobbying arm and employs in-house lobbyists.
Seven in 10 Americans back the move.
The gun law is designed to close "the boyfriend loophole," which women's advocacy groups have been trying to close for years.
The bill's sponsor said the "real thing that needs to be addressed are issues of the heart."
A social media firestorm encouraged car companies and other businesses to end discount programs for NRA members.
Angry Twitter users called on Amazon and its CEO Jeff Bezos to end the partnership with the National Rifle Association and NRATV programming.
A Parkland history teacher gave an NRA spokesperson a pop quiz