After criticism from the students, the White House says the president will hold a "listening session" with unspecified students on Wednesday and meet with state and local security officials on Thursday.
Although most can't even vote, they urge lawmakers to enact stricter laws in the wake of the high school shooting that left 17 people dead in Florida.
Student David Hogg lambasts lawmakers' "thoughts and prayers" and reliance on "ideas" over legislation that could help save lives.
In the wake of a deadly high school shooting, Gov. Rick Scott vows to keep guns from the mentally ill, and Broward County's sheriff calls for giving law enforcement more power to detain people who make threats.
The 19-year-old, charged with murdering 17 at a Florida high school, participated in white nationalist militia exercises, a militia leader says.
The carnage is the worst at a school since 2012 when a gunman killed 27, including himself, at a Newtown, Conn., campus.
Two people are seen in handcuffs after the vehicle runs into a barrier outside the campus of the intelligence agency.
The bill, which has the backing of the Senate's No. 2 Republican, John Cornyn of Texas, would ensure that federal agencies, such as the Defense Department, and states accurately report relevant criminal information to the FBI.
The Air Force’s apparent failure to send the criminal records of the airman behind Sunday’s mass killings in Texas to civilian authorities allowed him to obtain guns.