The law restricts a major government public health agency's research into gun violence, which kills or injures more people than many other infectious diseases.
President Trump says the Texas shooting shows that mental health is a "problem of the highest order." This comes amid a debate about mental illness, guns, and his own record on mental health programs.
The man who police say killed 26 people in a small Texas church on Sunday had a record of domestic violence, making him sadly typical. Many suspects of mass shootings have similar histories.
People see the causes of mass shootings differently, depending on whether they own guns. Those who don't own guns often blame such incidents on the widespread availability of guns — but owners do not.
Of the medical professionals who treated dozens of people after Sunday night's shooting, President Trump said, "It makes you very proud to be an American when you see the job that they've done."
Investigators are learning more about Stephen Paddock and the weapons he used to fire at a crowded music venue Sunday. We're also learning more about those who were killed in the vicious attack.
To manage the volume of gunshot victims from a mass shooting Sunday night that occurred along the Las Vegas Strip, local hospitals used ambulance bays and hallways as triage locations.
The president addressed the nation from the White House on Monday morning, giving his prayers and condolences for the victims of Sunday night's mass shooting, which left at least 58 dead.