Hogg joined the social media movement and student-led gun control advocacy group Never Again MSD shortly after its formation . Hogg flew to Los Angeles on February 21 , 2018 , to be on '' The Dr. Phil Show '' , along with his sister , to discuss the shooting . There , they met with survivors of the Columbine High School massacre . Hogg , along with fellow activist Emma González , blamed the National Rifle Association and the politicians to which they donate as being complicit in school shootings . He declined to go to the White House on February 21 to meet with President Donald Trump , saying that he had to be in Tallahassee , and that Trump could come to Parkland if he wanted to talk
Columbine High School massacre
Columbine High School massacre
David Hogg (activist)