Schumer has been outspoken about gun control since the summer of 2015 after several people were killed in a mass shooting at a screening of her film, Trainwreck, in a theater in Lafayette, Louisiana.
"I am someone who has a voice right now, and I feel really passionately about it, and it's so heartbreaking," she told ET. "It's just, like, enough. So, if not me, then who? And I hope other people will follow suit."