March for Our Lives rallies
Crowds of people hold signs on Pennsylvania Avenue at the "March for Our Lives" rally in support of gun control, Saturday, March 24, 2018, in Washington, D.C. The rally was a student-led response to the lack of political action against mass shootings, including the killing of 17 students and educators at Marjory Stoneman Douglas High School in Parkland, Fla., last month.
A half-million demonstrators were predicted for the nation's capital Saturday, with sibling rallies being held in cities across the U.S. and around the world.
Washington D.C.
An aerial view of Capitol Hill.
Washington D.C
An aerial view of marchers on Capitol Hill.
Washington, D.C.
Michael J. Weissman, 18, a student at Marjory Stoneman Douglas, where a mass shooting occurred last February 14 in which 17 students and educators were killed, carries a sign in Washington, D.C., March 24, 2018.
Washington, D.C.
Isabel White, a Parkland, Florida 8th grader who will be attending Marjory Stoneman Douglas High School in Parkland next year, displays a banner as students and gun control advocates hold the "March for Our Lives" event in Washington, D.C., March 24, 2018.
Washington, D.C.
A demonstrator arrives before students and gun control advocates hold the "March for Our Lives" event demanding gun control after recent school shootings at a rally in Washington, D.C., March 24, 2018.
A poll conducted by The Associated Press-NORC Center for Public Affairs Research shows that 69 percent of respondents and half of Republicans now favor stronger gun control laws.
Washington, D.C.
Participants hold up signs as students and gun control advocates hold the "March for Our Lives" event demanding gun control after recent school shootings at a rally in Washington, D.C., March 24, 2018.
Washington, D.C.
Participants hold up signs at the "March for Our Lives" event in Washington, D.C., March 24, 2018.
Washington, D.C.
Participants hold up signs as students and gun control advocates hold the "March for Our Lives" rally demanding gun control after recent school shootings, in Washington, D.C., March 24, 2018.
Washington, D.C.
Protesters hold signs aloft as they attend the "March for Our Lives" rally in support of gun control in Washington, D.C., Saturday, March 24, 2018, on Pennsylvania Avenue near the U.S. Capitol.
Washington, D.C.
A demonstrator chants at the "March for Our Lives" rally demanding gun control, in Washington, D.C., March 24, 2018.
Washington, D.C.
Demonstrators gather as students and gun control advocates hold the "March for Our Lives" event demanding gun control after recent school shootings, at a rally in Washington, D.C., March 24, 2018.
Washington, D.C.
Protesters hold signs during the "March for Our Lives" rally in support of gun control in Washington, D.C., Saturday, March 24, 2018, on Pennsylvania Avenue near the U.S. Capitol.
Washington, D.C.
Participants hold up signs at the "March for Our Lives" rally in Washington, D.C., March 24, 2018.
Washington, D.C.
Students from Great Mills High School in southern Maryland (where a teenager killed a classmate and wounded another last Tuesday) protest during the "March for Our Lives" rally in support of gun control, in Washington, D.C., Saturday, March 24, 2018.
Washington, D.C.
Students and gun control advocates file past the Trump Hotel in the Old Post Office Building as they participate in the "March for Our Lives" event demanding gun control in Washington, D.C., March 24, 2018.
Washington, D.C.
Participants hold up signs in front of the Trump International Hotel as they march demanding gun control, in Washington, D.C., March 24, 2018.
Washington, D.C.
Students and gun control advocates participate in the "March for Our Lives" event demanding gun control, in Washington, D.C., March 24, 2018.
Washington, D.C.
Connor Feliu of Syracuse N.Y., covered in red paint, attends the "March for Our Lives" rally in support of gun control in Washington, D.C., Saturday, March 24, 2018, on Pennsylvania Avenue near the U.S. Capitol.
Washington, D.C.
Participants hold up signs at the "March for Our Lives" rally in Washington, D.C., March 24, 2018.
Washington, D.C.
Attendees are seen at the "March for Our Lives" event demanding gun control in Washington, D.C., March 24, 2018.
Washington, D.C.
Attendees are seen at the "March for Our Lives" demonstration demanding gun control, in Washington, D.C., March 24, 2018.
Washington, D.C.
Los Angeles student Edna Chavez looks up to the sky and cries as she speaks about the shooting death of her 14-year-old brother Ricardo as students and gun control advocates hold the "March for Our Lives" event demanding gun control at a rally in Washington, D.C., March 24, 2018.
Washington, D.C.
Los Angeles student Edna Chavez speaks about the shooting death of her 14-year-old brother Ricardo as students and gun control advocates hold the "March for Our Lives" event demanding gun control in Washington, D.C., March 24, 2018.
Washington, D.C.
Naomi Wadler, 11, of George Mason Elementary School, who organized a student walkout at her school in Alexandria, Va., after the school shooting in Parkland, Fla., speaks in support of gun control during the "March for Our Lives" rally in Washington, D.C., Saturday, March 24, 2018.
Washington, D.C.
Students watch and listen as singer Demi Lovato performs the song "Skyscraper" during the "March for Our Lives" event demanding gun control in Washington, D.C., March 24, 2018.
Washington, D.C.
David Hogg, a survivor of the mass shooting at Marjory Stoneman Douglas High School in Parkland, Fla., raises his fist after speaking during the "March for Our Lives" rally in support of gun control in Washington, D.C., Saturday, March 24, 2018.
Washington, D.C.
Singer Miley Cyrus holds up a "Never Again" sign as she performs the song "The Climb" as students and gun control advocates hold the "March for Our Lives" rally in Washington, D.C., March 24, 2018.
Washington, D.C.
A student of the Marjory Stoneman Douglas school, site of a mass shooting which left 17 people dead in Parkland, Florida, carries a sign as she joins students and gun control advocates holding the "March for Our Lives" event demanding gun control, in Washington, D.C., March 24, 2018.
Washington, D.C.
Participants hold up signs as students and gun control advocates hold the "March for Our Lives" event demanding gun control after recent school shootings at a rally in Washington, D.C., March 24, 2018.
Washington, D.C.
Participants hold up signs in the "March for Our Lives" event demanding gun control in Washington, D.C., March 24, 2018.
Washington, D.C.
A view of the "March for Our Lives" rally in Washington, D.C., March 24, 2018.
Washington, D.C.
Emma Gonzalez, a student and shooting survivor from the Marjory Stoneman Douglas High School in Parkland, Florida, cries as she addresses the conclusion of the "March for Our Lives" event in Washington, D.C., March 24, 2018.
Washington, D.C.
Colette Schule, 17, of Florida, poses outside of the White House after students and gun control advocates held the "March for Our Lives" event demanding gun control after recent school shootings at a rally in Washington, D.C., March 24, 2018.
Washington, D.C.
Merchandise is seen at the "March for Our Lives" rally in Washington, D.C., March 24, 2018.
New York City
Protesters raise signs during a "March for Our Lives" demonstration demanding gun control in New York City, March 24, 2018.
New York City
Protesters raise signs during a "March For Our Lives" demonstration demanding gun control in New York City, March 24, 2018.
New York City
Protesters hold photos of victims of school shootings during a "March for Our Lives" demonstration demanding gun control in New York City, March 24, 2018.
New York City
A protester holds a gun control sign during a "March For Our Lives" demonstration demanding gun control in New York City, March 24, 2018.
New York City
A protester holds a gun control sign during a "March For Our Lives" demonstration demanding gun control in New York City, March 24, 2018.
New York City
A man holds a sign against gun control, during a "March For Our Lives" demonstration in New York City, March 24, 2018.
Houston, Texas
Student organizers lead the "March for Our Lives" demonstration to end gun violence, in downtown Houston, Texas, March 24, 2018.
Houston, Texas
People gather for the "March for Our Lives" demonstration to end gun violence, in downtown Houston, March 24, 2018.
Houston, Texas
A woman wears stickers in protest of gun violence before the "March for Our Lives" demonstration calling for an end to gun violence, in downtown Houston, March 24, 2018.
Houston, Texas
Activists wear "Handmaid's Tale"-style red robes and white bonnets before the "March for Our Lives" rally for increased gun regulations, in downtown Houston, March 24, 2018.
Miami Beach, Florida
People hold signs while rallying in the street during "March for Our Lives," demanding stricter gun control laws, at the Miami Beach Senior High School in Miami, Florida, March 24, 2018.
Miami Beach, Florida
People hold signs while rallying in the street during "March for Our Lives," demanding stricter gun control laws, at the Miami Beach Senior High School in Miami, Florida, March 24, 2018.
Parkland, Florida
People take part in a "March For Our Lives" rally Saturday, March 24, 2018, in Parkland, Fla. Thousands of people filled a park near Marjory Stoneman Douglas High School, the site of last month's school massacre.
Parkland, Florida
Samantha Mayor was injured in the Parkland, Fla., school shooting.
Miami, Florida
A girl holds a sign while rallying in the street during the "March for Our Lives" rally demanding stricter gun control laws, at Miami Beach Senior High School in Miami, Florida, March 24, 2018.
Miami, Florida
Students listen to the national anthem during the "March for Our Lives" demanding stricter gun control laws at Miami Beach Senior High School, in Miami, Florida, March 24, 2018.
Miami, Florida
People and students hold signs during the "March for Our Lives" demanding stricter gun control laws at Miami Beach Senior High School, in Miami, Florida, March 24, 2018.
Miami, Florida
People and students hold signs while rallying in the street during the "March for Our Lives" demanding stricter gun control laws, at the Miami Beach Senior High School, in Miami, Florida, March 24, 2018.
Los Angeles
People gather during the "March for Our Lives" demonstration to end gun violence, in downtown Los Angeles, March 24, 2018.
Los Angeles
Students hold signs during the "March for Our Lives" demonstration to end gun violence, in downtown Los Angeles, California, March 24, 2018.
Los Angeles
People walk with signs against the NRA during "March for Our Lives" demonstration in downtown Los Angeles, California, March 24, 2018.
Cincinnati, Ohio
Demonstrators march through downtown Cincinnati during the "March for Our Lives" protest for gun legislation and school safety, Saturday, March 24, 2018.
Cincinnati, Ohio
Demonstrators march through downtown Cincinnati during the "March for Our Lives" protest for gun legislation and school safety, Saturday, March 24, 2018.
Concord, New Hampshire
Demonstrators participate in a "March for Our Lives" rally outside the New Hampshire Statehouse in Concord, March 24, 2018.
Seventeen-year-old Leeza Richter said: "Our government will do more to stop us from walking out than it will to stop a gunman from walking in."
Nashville, Tennessee
Demonstrators participate in the "March for Our Lives" at Public Square Park in Nashville, March 24, 2018.
"It's time for our generation to do something," Vanderbilt student and organizer GeGe Clements told CBS Affiliate WTVF.
Seattle, Washington
People demonstrate during a "March For Our Lives" demonstration demanding gun control in Seattle, Washington, March 24, 2018.
Seattle, Washington
People demonstrate during a "March For Our Lives" demonstration demanding gun control in Seattle, Washington, March 24, 2018.
Seattle, Washington
People gather during a "March For Our Lives" demonstration demanding gun control in Seattle, Washington, March 24, 2018.
Chicago, Illinois
Students and gun control advocates attend the "March for Our Lives" event after recent school shootings, at a rally in Chicago, Illinois, March 24, 2018.
Chicago, Illinois
Noreen Haiduk holds a sign as she attends the "March for Our Lives" event after recent school shootings, at a rally in Chicago, Illinois, March 24, 2018.
Chicago, Illinois
A woman holds a sign as she attends the "March for Our Lives" event after recent school shootings, at a rally in Chicago, Illinois, March 24, 2018.
Amsterdam, Netherlands
Crowds gather in Amsterdam as part of a "March for Our Lives" rally, March 24, 2018.
Sao Paulo, Brazil
People take part in the "March for Our Lives" demonstration outside the U.S. Consulate in Sao Paulo, Brazil, March 24, 2018.
Bogota, Colombia
People take part in the "March for Our Lives" demonstration outside the U.S. Embassy in Bogota, Colombia March 24, 2018.
Washington, D.C.
People leave their leftover signs outside of the White House after the "March for Our Lives" event demanding gun control, in Washington, D.C., March 24, 2018.