Good Monday morning.

🎙️ I'll join Dan Primack for today's debut of Axios' first podcast, Pro Rata, covering the collision of business, tech and politics. Join our conversation: Subscribe here.

Breaking: "One dead, 13 injured, gunman killed in mass shooting in Toronto."

Situational awareness: "A transgender activist who won a discrimination lawsuit after her school refused to let her use the girls' bathroom will be TV's first transgender superhero," per AP. "Nicole Maines will star in The CW/Warner Bros.' 'Supergirl.'"

Thanks for reading. We'll have updates all day in the Axios stream.