Kristin Miller (C), of Littleton, Colorado holds up a sign as thousands of people participate in the March for Our Lives rally on March 24, 2018 in Denver, Colorado. More than 800 March for Our Lives events, organized by survivors of the Parkland, Florida school shooting on February 14 that left 17 dead, are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Ross Taylor/Getty Images)
Thousands Join March For Our Lives Events Across US For School Safety From Guns
Jasmine Hauter of Parker, Colorado, shouts during the March for Our Lives rally on March 24, 2018 in Denver, Colorado. More than 800 March for Our Lives events, organized by survivors of the Parkland, Florida school shooting on February 14 that left 17 dead, are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Ross Taylor/Getty Images)
March for Our Lives Denver
Maddie King, current student and survivor of the 2018 Marjory Stoneman Douglas shooting, gives a speech at Civic Center Park for the March for Our Lives rally March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
Thousands Join March For Our Lives Events Across US For School Safety From Guns
(L-R) Simone Kirkevold, 14, of Longmont, Colorado, Lexi Ames, 17, of Denver, and Laura Mendoza, of Denver, 17, shout "This is what democracy looks like!" during the March for Our Lives rally on March 24, 2018 in Denver, Colorado. More than 800 March for Our Lives events, organized by survivors of the Parkland, Florida school shooting on February 14 that left 17 dead, are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Ross Taylor/Getty Images)
March For Our Lives Rally In Denver
(credit: CBS)
March for Our Lives Denver
Tom Mauser, father of Daniel Mauser who was killed in the Columbine High School shooting, gets the crowd fired up at Civic Center Park for the March for Our Lives rally March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
March For Our Lives Rally In Denver
(credit: CBS)
March for Our Lives Denver
Colorado students and supporters descended on Civic Center Park for the March for Our Lives to call on lawmakers to end gun violence and ensure students' safety March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
March For Our Lives Rally In Denver
(credit: CBS)
March for Our Lives Denver
Protesters had up 17th Ave for the March for Our Lives to end gun violence March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
March For Our Lives Rally In Denver
(credit: CBS)
March For Our Lives Rally In Denver
(credit: CBS)
March for Our Lives Denver
Golden High School senior Dominique Peeri, center, shouts out a slogan on stage during the March for Our Lives rally to call on lawmakers to end gun violence and ensure students' safety March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
March for Our Lives Denver
Colorado students and supporters descended on Civic Center Park for the March for Our Lives to call on lawmakers to end gun violence and ensure students' safety March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
March for Our Lives Denver
Colorado students and supporters descended on Civic Center Park for the March for Our Lives to call on lawmakers to end gun violence and ensure students' safety March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
Thousands Join March For Our Lives Events Across US For School Safety From Guns
Laurie Teague, 55, of Littleton, Colorado, wipes a tear from her eye during the March for Our Lives rally on March 24, 2018 in Denver, Colorado. At right is Kristen Wylie, 17, of Highlands Ranch, Colorado. More than 800 March for Our Lives events, organized by survivors of the Parkland, Florida school shooting on February 14 that left 17 dead, are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Ross Taylor/Getty Images)
March For Our Lives Rally In Denver
(credit: CBS)
Thousands Join March For Our Lives Events Across US For School Safety From Guns
Thousands of people participate during the March for Our Lives rally at Civic Center Park on March 24, 2018 in Denver, Colorado. More than 800 March for Our Lives events, organized by survivors of the Parkland, Florida school shooting on February 14 that left 17 dead, are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Ross Taylor/Getty Images)
Thousands Join March For Our Lives Events Across US For School Safety From Guns
Thousands of participants gather at Civic Center Park during March for Our Lives rally on March 24, 2018 in Denver, Colorado. Thousands turned out for the event in downtown. More than 800 March for Our Lives events, organized by survivors of the Parkland, Florida school shooting on February 14 that left 17 dead, are taking place around the world to call for legislative action to address school safety and gun violence. (Photo by Ross Taylor/Getty Images)
March For Our Lives Rally In Denver
(credit: CBS)
March For Our Lives Rally In Denver
A March for Our Lives rally in Denver on March 24, 2018. (credit: CBS)
March For Our Lives Rally In Denver
(credit: CBS)
March for Our Lives Denver
Colorado students and supporters descended on Civic Center Park for the March for Our Lives to call on lawmakers to end gun violence and ensure students' safety March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
March For Our Lives Rally In Denver
(credit: CBS)
March for Our Lives Denver
Colorado students and supporters descended on Civic Center Park for the March for Our Lives to call on lawmakers to end gun violence and ensure students' safety March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
March for Our Lives Denver
Colorado students and supporters descended on Civic Center Park for the March for Our Lives to call on lawmakers to end gun violence and ensure students' safety March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
March for Our Lives Denver
Colorado students and supporters descended on Civic Center Park for the March for Our Lives to call on lawmakers to end gun violence and ensure students' safety March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
March for Our Lives Denver
Maddie King, current student and survivor of the 2018 Marjory Stoneman Douglas shooting, gives a speech at Civic Center Park for the March for Our Lives rally March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
March for Our Lives Denver
Aurora theater shooting survivor Marcus Weaver takes a moment during a speech at Civic Center Park for the March for Our Lives rally March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
March For Our Lives Rally In Denver
(credit: CBS)
March for Our Lives Denver
Colorado students and supporters head down Bannock St. for the March for Our Lives protest March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
March For Our Lives Rally In Denver
(credit: CBS)
March for Our Lives Denver
Protesters make the turn from 17th Ave to Broadway during the March for Our Lives to end gun violence March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
March for Our Lives Denver
Protesters head down Broadway during the March for Our Lives to end gun violence March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
March for Our Lives Denver
Protesters head down Broadway during the March for Our Lives to end gun violence March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)
March For Our Lives Rally In Denver
(credit: CBS)
March For Our Lives Rally In Denver
A March for Our Lives rally in Denver on March 24, 2018. (credit: CBS)
March for Our Lives Denver
Colorado students and supporters descended on Civic Center Park for the March for Our Lives to call on lawmakers to end gun violence and ensure students' safety March 24, 2018. The student-led rally and march is one of more than 400 sister demonstrations taking place across the country March 24 in partnership with the Washington DC march that is organized by the student survivors of the February 14 shooting in Parkland, Florida. (Photo by Andy Cross/The Denver Post via Getty Images)