Marco Rubio Videos
School officer stood outside for 4 minutes doing 'nothing' during massacre: Sheriff
The officer was suspended without pay but he decided to resign, authorities said.
Deputy press secretary takes questions on Trump's school safety meeting
ABC News' "Powerhouse Politics" team breaks down the headlines out of the briefing.
Trump hosts listening session with shooting survivors, families of victims
"The View" co-hosts discuss the impact of the president's listening session.
Marco Rubio , students clash at town hall
"The View" co-hosts discuss Rubio's response to the testimony from those affected by mass shootings.
Student activists react to Trump, Florida lawmakers on guns
Marjory Stoneman Douglas High School students Ryan Deitsch, Sam Zeif and Julia Cordover tell "GMA" about their experiences advocating for gun reform.
Parents and students confront lawmakers on gun control
Marjory Stoneman Douglas High School shooting survivors and parents of shooting victims urged lawmakers, including Sen. Marco Rubio, R-Fla., to "do something about guns."
Shooting Town Hall: Florida students and parents demand gun reform
Florida Republican Senator Marco Rubio was among the lawmakers put on the defensive as they were confronted by impassioned students and parents from Parkland, Florida.
School shooting survivors march in state capital for gun control
Florida state lawmakers voted down a measure to ban purchases of assault rifles like the one 19-year-old Nikolas Cruz used in his alleged deadly attack at Marjory Stoneman Douglas High School.
Florida congressman after shooting: 'There are bills that we can pass tomorrow'
Florida Republican Rep. Curbelo and Democratic Rep. Deutch, who represents the district where the shooting occurred, are interviewed on "This Week" about what action Congress can take now.