5 children killed in a crash near Kitchener-Waterloo, Ont.

OTTAWA — It took Corey Tochor three years to get to this week. The Conservative MP turned heads on Parliament Hill when, in the midst of the House of Commons’ final dizzying days of passing legislation before adjourning for the summer, he emerged with an idea: What if psilocybin and psilocin, the active ingredients in what are otherwise known as magic mushrooms, were easier to access for those using it in therapy? “I didn’t get involved in politics for this,” Tochor told National Post in an interview. “But Thomas came into my office and really tweaked me that, wait a minute, there...