House committee asks Discord, Valve, Twitch and Reddit to testify on online radicalization

House Oversight and Government Reform Committee Chairman James Comer (R-KY) has asked the CEOs of Discord, Twitch, Valve and Reddit to testify at a hearing on online radicalization. The hearing will be held on October 8, 2025, and is in direct response to the assassination of political activist Charlie Kirk, an event some have tried to connect to the online communities the alleged shooter, Tyler Robinson, participated in.

“Congress has a duty to oversee the online platforms that radicals have used to advance political violence,” Comer shared in the press release announcing the hearing. “To prevent future radicalization and violence, the CEOs of Discord, Steam, Twitch, and Reddit must appear before the Oversight Committee and explain what actions they will take to ensure their platforms are not exploited for nefarious purposes.”

Following Kirk’s death, law enforcement, regulators and the press have exerted significant effort to both understand Robinson’s actions and structure them into a coherent narrative. The fact that he seemingly engraved the bullets he used with references to furry memes and the game Helldivers implies he may have been immersed in online culture, and could have been influenced by who he interacted with there. But a recent report on his Discord chats suggests his motivations are hard to pin down, even for his friends.

In general, online platforms don’t escape scrutiny after tragic events, so these sorts of hearings are to be expected. Twitch and Discord were both investigated by the New York and New Jersey Attorney Generals following a 2022 shooting in Buffalo, New York, for example. Given the reaction to Kirk’s death, though, it remains to be seen how much the House Oversight Committee actually wants answers from online platforms, and how much it wants to lay the blame at their feet.