When floodwaters rushed through a girl's summer camp nestled in the , Michael McCown's 8-year-old daughter was among 27 campers and counselors swept to their deaths.

On Wednesday, McCown joined other Camp Mystic parents, some wearing buttons memorializing “Heaven's 27,” in demanding that Texas lawmakers pass a that would boost camp safety, including generally keeping cabins , instituting new requirements for emergency plans and mandating weather radios.

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